Search a number
-
+
85115908 = 221271371223
BaseRepresentation
bin1010001001011…
…00010000000100
312221011100002001
411010230100010
5133242202113
612240155044
72052321223
oct504542004
9187140061
1085115908
1144055929
1224608a84
1314831b57
14b438cba
1577147dd
hex512c404

85115908 has 24 divisors (see below), whose sum is σ = 151345152. Its totient is φ = 41880384.

The previous prime is 85115897. The next prime is 85115911. The reversal of 85115908 is 80951158.

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, 68985 + ... + 70207.

It is an arithmetic number, because the mean of its divisors is an integer number (6306048).

Almost surely, 285115908 is an apocalyptic number.

It is an amenable number.

85115908 is a deficient number, since it is larger than the sum of its proper divisors (66229244).

85115908 is a wasteful number, since it uses less digits than its factorization.

85115908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491 (or 1489 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 37.

The square root of 85115908 is about 9225.8283096966. The cubic root of 85115908 is about 439.8827304559.

The spelling of 85115908 in words is "eighty-five million, one hundred fifteen thousand, nine hundred eight".

Divisors: 1 2 4 127 137 254 274 508 548 1223 2446 4892 17399 34798 69596 155321 167551 310642 335102 621284 670204 21278977 42557954 85115908