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30754472672 = 2571112481523
BaseRepresentation
bin11100101001000111…
…000000001011100000
32221101022222002022102
4130221013000023200
51000441121111142
622043423025532
72136060463430
oct345107001340
987338862272
1030754472672
1112052109570
125b6373b2a8
132b91797631
1416ba7222c0
15beeeab532
hex7291c02e0

30754472672 has 48 divisors (see below), whose sum is σ = 75488257152. Its totient is φ = 11982261120.

The previous prime is 30754472633. The next prime is 30754472729. The reversal of 30754472672 is 27627445703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6238298 + ... + 6243225.

It is an arithmetic number, because the mean of its divisors is an integer number (1572672024).

Almost surely, 230754472672 is an apocalyptic number.

30754472672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30754472672 is an abundant number, since it is smaller than the sum of its proper divisors (44733784480).

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

30754472672 is a wasteful number, since it uses less digits than its factorization.

30754472672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12481551 (or 12481543 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 47.

The spelling of 30754472672 in words is "thirty billion, seven hundred fifty-four million, four hundred seventy-two thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 11 14 16 22 28 32 44 56 77 88 112 154 176 224 308 352 616 1232 2464 12481523 24963046 49926092 87370661 99852184 137296753 174741322 199704368 274593506 349482644 399408736 549187012 698965288 961077271 1098374024 1397930576 1922154542 2196748048 2795861152 3844309084 4393496096 7688618168 15377236336 30754472672