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89693912 = 23721123161
BaseRepresentation
bin1010101100010…
…01111011011000
320020202220220202
411112021323120
5140430201122
612522241332
72136246200
oct526117330
9206686822
1089693912
11466a2400
1226056248
1315775829
14bcab400
157d1ae92
hex5589ed8

89693912 has 144 divisors (see below), whose sum is σ = 225610560. Its totient is φ = 33264000.

The previous prime is 89693911. The next prime is 89693917. The reversal of 89693912 is 21939698.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89693911) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1470362 + ... + 1470422.

It is an arithmetic number, because the mean of its divisors is an integer number (1566740).

Almost surely, 289693912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89693912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112805280).

89693912 is an abundant number, since it is smaller than the sum of its proper divisors (135916648).

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

89693912 is a wasteful number, since it uses less digits than its factorization.

89693912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 112 counting only the distinct ones).

The product of its digits is 209952, while the sum is 47.

The square root of 89693912 is about 9470.6869866974. The cubic root of 89693912 is about 447.6318590238.

The spelling of 89693912 in words is "eighty-nine million, six hundred ninety-three thousand, nine hundred twelve".

Divisors: 1 2 4 7 8 11 14 22 28 31 44 49 56 61 62 77 88 98 121 122 124 154 196 217 242 244 248 308 341 392 427 434 484 488 539 616 671 682 847 854 868 968 1078 1342 1364 1519 1694 1708 1736 1891 2156 2387 2684 2728 2989 3038 3388 3416 3751 3782 4312 4697 4774 5368 5929 5978 6076 6776 7381 7502 7564 9394 9548 11858 11956 12152 13237 14762 15004 15128 16709 18788 19096 20801 23716 23912 26257 26474 29524 30008 32879 33418 37576 41602 47432 51667 52514 52948 59048 65758 66836 83204 92659 103334 105028 105896 131516 133672 145607 166408 183799 185318 206668 210056 228811 263032 291214 361669 367598 370636 413336 457622 582428 723338 735196 741272 915244 1019249 1164856 1446676 1470392 1601677 1830488 2038498 2893352 3203354 4076996 6406708 8153992 11211739 12813416 22423478 44846956 89693912