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70526404 = 22132172192
BaseRepresentation
bin1000011010000…
…10010111000100
311220201010001001
410031002113010
5121023321104
610555343044
71514315224
oct415022704
9156633031
1070526404
11368a0593
121b751a84
13117c4300
14951c084
1562d1aa4
hex43425c4

70526404 has 81 divisors (see below), whose sum is σ = 149834727. Its totient is φ = 29023488.

The previous prime is 70526377. The next prime is 70526413. The reversal of 70526404 is 40462507.

The square root of 70526404 is 8398.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 636804 + 69889600 = 798^2 + 8360^2 .

It is a super-2 number, since 2×705264042 = 9947947322342432, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3711907 + ... + 3711925.

Almost surely, 270526404 is an apocalyptic number.

70526404 is the 8398-th square number.

It is an amenable number.

70526404 is an abundant number, since it is smaller than the sum of its proper divisors (79308323).

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

70526404 is a wasteful number, since it uses less digits than its factorization.

70526404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The cubic root of 70526404 is about 413.1590278457.

It can be divided in two parts, 7052 and 6404, that added together give a square (13456 = 1162).

The spelling of 70526404 in words is "seventy million, five hundred twenty-six thousand, four hundred four".

Divisors: 1 2 4 13 17 19 26 34 38 52 68 76 169 221 247 289 323 338 361 442 494 578 646 676 722 884 988 1156 1292 1444 2873 3211 3757 4199 4693 5491 5746 6137 6422 7514 8398 9386 10982 11492 12274 12844 15028 16796 18772 21964 24548 48841 54587 61009 71383 79781 97682 104329 109174 122018 142766 159562 195364 208658 218348 244036 285532 319124 417316 927979 1037153 1356277 1855958 2074306 2712554 3711916 4148612 5425108 17631601 35263202 70526404