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140913724 = 22731162343
BaseRepresentation
bin10000110011000…
…10110000111100
3100211011011021211
420121202300330
5242033214344
621552134204
73330514120
oct1031426074
9324134254
10140913724
11725a6626
123b237364
132326a203
1414a01580
15c587334
hex8662c3c

140913724 has 24 divisors (see below), whose sum is σ = 290920448. Its totient is φ = 58443120.

The previous prime is 140913719. The next prime is 140913727. The reversal of 140913724 is 427319041.

It is a super-2 number, since 2×1409137242 = 39713355223096352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140913727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80304 + ... + 82039.

Almost surely, 2140913724 is an apocalyptic number.

140913724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140913724 is an abundant number, since it is smaller than the sum of its proper divisors (150006724).

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

140913724 is a wasteful number, since it uses less digits than its factorization.

140913724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162385 (or 162383 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 140913724 is about 11870.7086561839. The cubic root of 140913724 is about 520.3766058786.

The spelling of 140913724 in words is "one hundred forty million, nine hundred thirteen thousand, seven hundred twenty-four".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 162343 324686 649372 1136401 2272802 4545604 5032633 10065266 20130532 35228431 70456862 140913724