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140872590 = 23251565251
BaseRepresentation
bin10000110010110…
…00101110001110
3100211002001212100
420121120232032
5242030410330
621551215530
73330253155
oct1031305616
9324061770
10140872590
1172578731
123b2175a6
1323254581
14149d059c
15c57a060
hex8658b8e

140872590 has 24 divisors (see below), whose sum is σ = 366268968. Its totient is φ = 37566000.

The previous prime is 140872573. The next prime is 140872603. The reversal of 140872590 is 95278041.

It is a super-2 number, since 2×1408725902 = 39690173226616200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 782536 + ... + 782715.

It is an arithmetic number, because the mean of its divisors is an integer number (15261207).

Almost surely, 2140872590 is an apocalyptic number.

140872590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140872590 is an abundant number, since it is smaller than the sum of its proper divisors (225396378).

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

140872590 is a wasteful number, since it uses less digits than its factorization.

140872590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565264 (or 1565261 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 140872590 is about 11868.9759457166. The cubic root of 140872590 is about 520.3259667266.

The spelling of 140872590 in words is "one hundred forty million, eight hundred seventy-two thousand, five hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1565251 3130502 4695753 7826255 9391506 14087259 15652510 23478765 28174518 46957530 70436295 140872590