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38387755075065 = 3511540743028123
BaseRepresentation
bin10001011101001110110001…
…00000010100010111111001
312000220211111122122220010220
420232213120200110113321
520012421110244400230
6213351031412130253
711041265233226034
oct1056473040242771
9160824448586126
1038387755075065
1111260178a78310
12437b979606989
131855c46853516
14969d9785601b
15468848636d10
hex22e9d88145f9

38387755075065 has 32 divisors (see below), whose sum is σ = 67016475242496. Its totient is φ = 18608802202560.

The previous prime is 38387755075039. The next prime is 38387755075123. The reversal of 38387755075065 is 56057055778383.

It is not a de Polignac number, because 38387755075065 - 26 = 38387755075001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20621907 + ... + 22406216.

It is an arithmetic number, because the mean of its divisors is an integer number (2094264851328).

Almost surely, 238387755075065 is an apocalyptic number.

It is an amenable number.

38387755075065 is a deficient number, since it is larger than the sum of its proper divisors (28628720167431).

38387755075065 is a wasteful number, since it uses less digits than its factorization.

38387755075065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43033549.

The product of its (nonzero) digits is 740880000, while the sum is 69.

The spelling of 38387755075065 in words is "thirty-eight trillion, three hundred eighty-seven billion, seven hundred fifty-five million, seventy-five thousand, sixty-five".

Divisors: 1 3 5 11 15 33 55 165 5407 16221 27035 59477 81105 178431 297385 892155 43028123 129084369 215140615 473309353 645421845 1419928059 2366546765 7099640295 232653061061 697959183183 1163265305305 2559183671671 3489795915915 7677551015013 12795918358355 38387755075065