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82589975 = 52131991277
BaseRepresentation
bin1001110110000…
…11100100010111
312202102000010222
410323003210113
5132120334400
612110104555
72022001046
oct473034427
9182360128
1082589975
1142690086
12237ab15b
1314159210
14ad7c55d
1573b6185
hex4ec3917

82589975 has 24 divisors (see below), whose sum is σ = 110930400. Its totient is φ = 60635520.

The previous prime is 82589959. The next prime is 82590037. The reversal of 82589975 is 57998528.

It is not a de Polignac number, because 82589975 - 24 = 82589959 is a prime.

It is a super-2 number, since 2×825899752 = 13642207941001250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64037 + ... + 65313.

It is an arithmetic number, because the mean of its divisors is an integer number (4622100).

Almost surely, 282589975 is an apocalyptic number.

82589975 is a deficient number, since it is larger than the sum of its proper divisors (28340425).

82589975 is a wasteful number, since it uses less digits than its factorization.

82589975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499 (or 1494 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 53.

The square root of 82589975 is about 9087.9026733345. The cubic root of 82589975 is about 435.4875846830.

The spelling of 82589975 in words is "eighty-two million, five hundred eighty-nine thousand, nine hundred seventy-five".

Divisors: 1 5 13 25 65 199 325 995 1277 2587 4975 6385 12935 16601 31925 64675 83005 254123 415025 1270615 3303599 6353075 16517995 82589975