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1230152400 = 243352113903
BaseRepresentation
bin100100101010010…
…1010001011010000
310011201202012212000
41021110222023100
510004404334100
6322022234000
742325060101
oct11124521320
93151665760
101230152400
11581430784
122a3b85900
13167b20939
14b953c3a8
1572ee4900
hex4952a2d0

1230152400 has 120 divisors (see below), whose sum is σ = 4378469760. Its totient is φ = 328037760.

The previous prime is 1230152387. The next prime is 1230152437. The reversal of 1230152400 is 42510321.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 46152 + ... + 67751.

It is an arithmetic number, because the mean of its divisors is an integer number (36487248).

Almost surely, 21230152400 is an apocalyptic number.

1230152400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230152400 is an abundant number, since it is smaller than the sum of its proper divisors (3148317360).

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

1230152400 is a wasteful number, since it uses less digits than its factorization.

1230152400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113930 (or 113913 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1230152400 is about 35073.5284794672. The cubic root of 1230152400 is about 1071.4855192588.

Adding to 1230152400 its reverse (42510321), we get a palindrome (1272662721).

The spelling of 1230152400 in words is "one billion, two hundred thirty million, one hundred fifty-two thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 36 40 45 48 50 54 60 72 75 80 90 100 108 120 135 144 150 180 200 216 225 240 270 300 360 400 432 450 540 600 675 720 900 1080 1200 1350 1800 2160 2700 3600 5400 10800 113903 227806 341709 455612 569515 683418 911224 1025127 1139030 1366836 1708545 1822448 2050254 2278060 2733672 2847575 3075381 3417090 4100508 4556120 5125635 5467344 5695150 6150762 6834180 8201016 8542725 9112240 10251270 11390300 12301524 13668360 15376905 16402032 17085450 20502540 22780600 24603048 25628175 27336720 30753810 34170900 41005080 45561200 49206096 51256350 61507620 68341800 76884525 82010160 102512700 123015240 136683600 153769050 205025400 246030480 307538100 410050800 615076200 1230152400