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388132726368 = 25331130420943
BaseRepresentation
bin1011010010111101000…
…00110110011001100000
31101002211122012101222210
411221132200312121200
522324343434220433
6454150011202120
740020201511422
oct5513640663140
91332748171883
10388132726368
1113a673895042
1263280a46340
132a7a6b3823a
1414b00054812
15a169b44463
hex5a5e836660

388132726368 has 48 divisors (see below), whose sum is σ = 1051714492416. Its totient is φ = 125204104320.

The previous prime is 388132726349. The next prime is 388132726403. The reversal of 388132726368 is 863627231883.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 65207496 + ... + 65213447.

It is an arithmetic number, because the mean of its divisors is an integer number (21910718592).

Almost surely, 2388132726368 is an apocalyptic number.

It is an amenable number.

388132726368 is an abundant number, since it is smaller than the sum of its proper divisors (663581766048).

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

388132726368 is a wasteful number, since it uses less digits than its factorization.

388132726368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130420987 (or 130420979 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 57.

The spelling of 388132726368 in words is "three hundred eighty-eight billion, one hundred thirty-two million, seven hundred twenty-six thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 31 32 48 62 93 96 124 186 248 372 496 744 992 1488 2976 130420943 260841886 391262829 521683772 782525658 1043367544 1565051316 2086735088 3130102632 4043049233 4173470176 6260205264 8086098466 12129147699 12520410528 16172196932 24258295398 32344393864 48516590796 64688787728 97033181592 129377575456 194066363184 388132726368