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32130012120 = 2335964927749
BaseRepresentation
bin11101111011000110…
…010001001111011000
310001221012021201200220
4131323012101033120
51011300240341440
622432121400040
72215132411503
oct357306211730
9101835251626
1032130012120
1112698610728
126288339020
1330507605bb
1417ab2a813a
15c80b1d8d0
hex77b1913d8

32130012120 has 64 divisors (see below), whose sum is σ = 96403500000. Its totient is φ = 8566806528.

The previous prime is 32130012107. The next prime is 32130012151. The reversal of 32130012120 is 2121003123.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 32130012120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144006 + ... + 1171754.

Almost surely, 232130012120 is an apocalyptic number.

32130012120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32130012120 is an abundant number, since it is smaller than the sum of its proper divisors (64273487880).

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

32130012120 is a wasteful number, since it uses less digits than its factorization.

32130012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37412 (or 37408 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 32130012120 its reverse (2121003123), we get a palindrome (34251015243).

The spelling of 32130012120 in words is "thirty-two billion, one hundred thirty million, twelve thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 9649 19298 27749 28947 38596 48245 55498 57894 77192 83247 96490 110996 115788 138745 144735 166494 192980 221992 231576 277490 289470 332988 385960 416235 554980 578940 665976 832470 1109960 1157880 1664940 3329880 267750101 535500202 803250303 1071000404 1338750505 1606500606 2142000808 2677501010 3213001212 4016251515 5355002020 6426002424 8032503030 10710004040 16065006060 32130012120