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1242703360 = 2951929881
BaseRepresentation
bin100101000010010…
…0010011000000000
310012121100212112101
41022010202120000
510021113001420
6323151240144
742536542603
oct11204423000
93177325471
101242703360
11588523478
122a8219054
1316a5c6642
14bb08833a
157417360a
hex4a122600

1242703360 has 160 divisors (see below), whose sum is σ = 3248229600. Its totient is φ = 454164480.

The previous prime is 1242703321. The next prime is 1242703369. The reversal of 1242703360 is 633072421.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242703369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1410120 + ... + 1411000.

It is an arithmetic number, because the mean of its divisors is an integer number (20301435).

Almost surely, 21242703360 is an apocalyptic number.

1242703360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242703360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624114800).

1242703360 is an abundant number, since it is smaller than the sum of its proper divisors (2005526240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242703360 is an equidigital number, since it uses as much as digits as its factorization.

1242703360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 1242703360 is about 35251.9979575626. The cubic root of 1242703360 is about 1075.1172354566.

Adding to 1242703360 its reverse (633072421), we get a palindrome (1875775781).

The spelling of 1242703360 in words is "one billion, two hundred forty-two million, seven hundred three thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 19 20 29 32 38 40 58 64 76 80 95 116 128 145 152 160 190 232 256 290 304 320 380 464 512 551 580 608 640 760 881 928 1102 1160 1216 1280 1520 1762 1856 2204 2320 2432 2560 2755 3040 3524 3712 4405 4408 4640 4864 5510 6080 7048 7424 8810 8816 9280 9728 11020 12160 14096 14848 16739 17620 17632 18560 22040 24320 25549 28192 33478 35240 35264 37120 44080 48640 51098 56384 66956 70480 70528 74240 83695 88160 102196 112768 127745 133912 140960 141056 167390 176320 204392 225536 255490 267824 281920 282112 334780 352640 408784 451072 485431 510980 535648 563840 669560 705280 817568 970862 1021960 1071296 1127680 1339120 1410560 1635136 1941724 2043920 2142592 2255360 2427155 2678240 3270272 3883448 4087840 4285184 4854310 5356480 6540544 7766896 8175680 8570368 9708620 10712960 13081088 15533792 16351360 19417240 21425920 31067584 32702720 38834480 42851840 62135168 65405440 77668960 124270336 155337920 248540672 310675840 621351680 1242703360