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30938385976 = 2319206998377
BaseRepresentation
bin11100110100000100…
…100100111000111000
32221212011000211221021
4130310010210320320
51001330211322401
622113552552224
72143452641011
oct346404447070
987764024837
1030938385976
1112136a04333
125bb5252674
132bc090b784
1416d6d18008
15c111d92a1
hex734124e38

30938385976 has 32 divisors (see below), whose sum is σ = 61092738000. Its totient is φ = 14647792896.

The previous prime is 30938385971. The next prime is 30938385983. The reversal of 30938385976 is 67958383903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30938385971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265300 + ... + 363676.

Almost surely, 230938385976 is an apocalyptic number.

It is an amenable number.

30938385976 is a deficient number, since it is larger than the sum of its proper divisors (30154352024).

30938385976 is a wasteful number, since it uses less digits than its factorization.

30938385976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100471 (or 100467 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 61.

The spelling of 30938385976 in words is "thirty billion, nine hundred thirty-eight million, three hundred eighty-five thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 19 38 76 152 2069 4138 8276 16552 39311 78622 98377 157244 196754 314488 393508 787016 1869163 3738326 7476652 14953304 203542013 407084026 814168052 1628336104 3867298247 7734596494 15469192988 30938385976