Search a number
-
+
82975074 = 23713151969
BaseRepresentation
bin1001111001000…
…01100101100010
312210010120101220
410330201211202
5132220200244
612122235510
72025163560
oct474414542
9183116356
1082975074
1142923446
1223955b96
13142625a0
14b03ca30
157440319
hex4f21962

82975074 has 32 divisors (see below), whose sum is σ = 204247680. Its totient is φ = 21883392.

The previous prime is 82975037. The next prime is 82975097. The reversal of 82975074 is 47057928.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75439 + ... + 76530.

It is an arithmetic number, because the mean of its divisors is an integer number (6382740).

Almost surely, 282975074 is an apocalyptic number.

82975074 is an abundant number, since it is smaller than the sum of its proper divisors (121272606).

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

82975074 is a wasteful number, since it uses less digits than its factorization.

82975074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151994.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 82975074 is about 9109.0654844501. The cubic root of 82975074 is about 436.1633965191.

The spelling of 82975074 in words is "eighty-two million, nine hundred seventy-five thousand, seventy-four".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 151969 303938 455907 911814 1063783 1975597 2127566 3191349 3951194 5926791 6382698 11853582 13829179 27658358 41487537 82975074