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38894256105 = 3529151592133
BaseRepresentation
bin100100001110010001…
…110011111111101001
310201101121101221000220
4210032101303333221
51114123412143410
625511234520253
72544556502445
oct441621637751
9121347357026
1038894256105
1115549880311
127655736089
13388ac70333
141c4d7b5825
1510298b9070
hex90e473fe9

38894256105 has 32 divisors (see below), whose sum is σ = 64803144960. Its totient is φ = 19895635200.

The previous prime is 38894256103. The next prime is 38894256119. The reversal of 38894256105 is 50165249883.

It is not a de Polignac number, because 38894256105 - 21 = 38894256103 is a prime.

It is a super-2 number, since 2×388942561052 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38894256101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230382 + ... + 361751.

It is an arithmetic number, because the mean of its divisors is an integer number (2025098280).

Almost surely, 238894256105 is an apocalyptic number.

It is an amenable number.

38894256105 is a deficient number, since it is larger than the sum of its proper divisors (25908888855).

38894256105 is a wasteful number, since it uses less digits than its factorization.

38894256105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592321.

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 38894256105 in words is "thirty-eight billion, eight hundred ninety-four million, two hundred fifty-six thousand, one hundred five".

Divisors: 1 3 5 15 29 87 145 151 435 453 755 2265 4379 13137 21895 65685 592133 1776399 2960665 8881995 17171857 51515571 85859285 89412083 257577855 268236249 447060415 1341181245 2592950407 7778851221 12964752035 38894256105