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289523074 = 23131714731
BaseRepresentation
bin10001010000011…
…100010110000010
3202011210021222211
4101100130112002
51043104214244
644421252334
710113622411
oct2120342602
9664707884
10289523074
11139478a75
1280b640aa
1347ca0139
142a647478
151a63e934
hex1141c582

289523074 has 16 divisors (see below), whose sum is σ = 449738496. Its totient is φ = 139640400.

The previous prime is 289523053. The next prime is 289523081. The reversal of 289523074 is 470325982.

It is a super-2 number, since 2×2895230742 = 167647220756818952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12289 + ... + 27019.

It is an arithmetic number, because the mean of its divisors is an integer number (28108656).

Almost surely, 2289523074 is an apocalyptic number.

289523074 is a deficient number, since it is larger than the sum of its proper divisors (160215422).

289523074 is a wasteful number, since it uses less digits than its factorization.

289523074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15081.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 289523074 is about 17015.3775744178. The cubic root of 289523074 is about 661.5475424063.

The spelling of 289523074 in words is "two hundred eighty-nine million, five hundred twenty-three thousand, seventy-four".

Divisors: 1 2 31 62 317 634 9827 14731 19654 29462 456661 913322 4669727 9339454 144761537 289523074