Search a number
-
+
1352285280 = 2535534781
BaseRepresentation
bin101000010011010…
…0011110001100000
310111020120012200000
41100212203301200
510232141112110
6342104100000
745340143453
oct12046436140
93436505600
101352285280
11634369a45
12318a64600
13187213608
14cb85149a
157dabc1c0
hex509a3c60

1352285280 has 144 divisors (see below), whose sum is σ = 4785724944. Its totient is φ = 360599040.

The previous prime is 1352285279. The next prime is 1352285303. The reversal of 1352285280 is 825822531.

1352285280 is a `hidden beast` number, since 1 + 3 + 522 + 8 + 52 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21490 + ... + 56270.

It is an arithmetic number, because the mean of its divisors is an integer number (33234201).

Almost surely, 21352285280 is an apocalyptic number.

1352285280 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 1352285280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2392862472).

1352285280 is an abundant number, since it is smaller than the sum of its proper divisors (3433439664).

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

1352285280 is an equidigital number, since it uses as much as digits as its factorization.

1352285280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34811 (or 34791 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 1352285280 is about 36773.4317136707. The cubic root of 1352285280 is about 1105.8327308795.

The spelling of 1352285280 in words is "one billion, three hundred fifty-two million, two hundred eighty-five thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 81 90 96 108 120 135 144 160 162 180 216 240 243 270 288 324 360 405 432 480 486 540 648 720 810 864 972 1080 1215 1296 1440 1620 1944 2160 2430 2592 3240 3888 4320 4860 6480 7776 9720 12960 19440 34781 38880 69562 104343 139124 173905 208686 278248 313029 347810 417372 521715 556496 626058 695620 834744 939087 1043430 1112992 1252116 1391240 1565145 1669488 1878174 2086860 2504232 2782480 2817261 3130290 3338976 3756348 4173720 4695435 5008464 5564960 5634522 6260580 7512696 8347440 8451783 9390870 10016928 11269044 12521160 14086305 15025392 16694880 16903566 18781740 22538088 25042320 28172610 30050784 33807132 37563480 42258915 45076176 50084640 56345220 67614264 75126960 84517830 90152352 112690440 135228528 150253920 169035660 225380880 270457056 338071320 450761760 676142640 1352285280