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30988662912 = 27338966627
BaseRepresentation
bin11100110111000100…
…010111100010000000
32221222122122011221000
4130313010113202000
51001431044203122
622122550332000
72144633201004
oct346704274200
987878564830
1030988662912
1112162324119
12600a05a000
132bcb162c3c
1416dd884704
15c1581b0ac
hex737117880

30988662912 has 64 divisors (see below), whose sum is σ = 91459605600. Its totient is φ = 10329553152.

The previous prime is 30988662893. The next prime is 30988662931. The reversal of 30988662912 is 21926688903.

30988662912 is a `hidden beast` number, since 3 + 0 + 9 + 8 + 8 + 6 + 629 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (30988662893) and next prime (30988662931).

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4479858 + ... + 4486769.

Almost surely, 230988662912 is an apocalyptic number.

30988662912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30988662912 is an abundant number, since it is smaller than the sum of its proper divisors (60470942688).

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

30988662912 is an equidigital number, since it uses as much as digits as its factorization.

30988662912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8966650 (or 8966632 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 30988662912 in words is "thirty billion, nine hundred eighty-eight million, six hundred sixty-two thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 288 384 432 576 864 1152 1728 3456 8966627 17933254 26899881 35866508 53799762 71733016 80699643 107599524 143466032 161399286 215199048 242098929 286932064 322798572 430398096 484197858 573864128 645597144 860796192 968395716 1147728256 1291194288 1721592384 1936791432 2582388576 3443184768 3873582864 5164777152 7747165728 10329554304 15494331456 30988662912