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85727500038 = 23771276047
BaseRepresentation
bin100111111010111000…
…0011101011100000110
322012021111102020000000
41033311300131130012
52401032220000123
6103214353502130
76123256504305
oct1176560353406
9265244366000
1085727500038
11333a1a36694
1214745b71946
138112910bab
1442136d243c
15236b22ab43
hex13f5c1d706

85727500038 has 64 divisors (see below), whose sum is σ = 195574487040. Its totient is φ = 28173254760.

The previous prime is 85727499971. The next prime is 85727500043. The reversal of 85727500038 is 83000572758.

85727500038 is a `hidden beast` number, since 8 + 572 + 75 + 0 + 0 + 0 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 85727499966 and 85727500002.

It is a congruent number.

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, 172531 + ... + 448577.

It is an arithmetic number, because the mean of its divisors is an integer number (3055851360).

Almost surely, 285727500038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85727500038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97787243520).

85727500038 is an abundant number, since it is smaller than the sum of its proper divisors (109846987002).

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

85727500038 is an equidigital number, since it uses as much as digits as its factorization.

85727500038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276141 (or 276123 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 85727500038 in words is "eighty-five billion, seven hundred twenty-seven million, five hundred thousand, thirty-eight".

Divisors: 1 2 3 6 9 18 27 54 71 81 142 162 213 243 426 486 639 729 1278 1458 1917 2187 3834 4374 5751 11502 17253 34506 51759 103518 155277 276047 310554 552094 828141 1656282 2484423 4968846 7453269 14906538 19599337 22359807 39198674 44719614 58798011 67079421 117596022 134158842 176394033 201238263 352788066 402476526 529182099 603714789 1058364198 1207429578 1587546297 3175092594 4762638891 9525277782 14287916673 28575833346 42863750019 85727500038