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90288152 = 23197379103
BaseRepresentation
bin1010110000110…
…11000000011000
320021220010001122
411120123000120
5141103210102
612543104412
72144302523
oct530330030
9207803048
1090288152
1146a68909
12262a2108
1315923156
14bdc3bba
157dd70a2
hex561b018

90288152 has 64 divisors (see below), whose sum is σ = 184704000. Its totient is φ = 41243904.

The previous prime is 90288127. The next prime is 90288161. The reversal of 90288152 is 25188209.

It is a congruent number.

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, 876533 + ... + 876635.

It is an arithmetic number, because the mean of its divisors is an integer number (2886000).

Almost surely, 290288152 is an apocalyptic number.

It is an amenable number.

90288152 is an abundant number, since it is smaller than the sum of its proper divisors (94415848).

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

90288152 is a wasteful number, since it uses less digits than its factorization.

90288152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 90288152 is about 9502.0077878309. The cubic root of 90288152 is about 448.6182339318.

The spelling of 90288152 in words is "ninety million, two hundred eighty-eight thousand, one hundred fifty-two".

Divisors: 1 2 4 8 19 38 73 76 79 103 146 152 158 206 292 316 412 584 632 824 1387 1501 1957 2774 3002 3914 5548 5767 6004 7519 7828 8137 11096 11534 12008 15038 15656 16274 23068 30076 32548 46136 60152 65096 109573 142861 154603 219146 285722 309206 438292 571444 594001 618412 876584 1142888 1188002 1236824 2376004 4752008 11286019 22572038 45144076 90288152