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124993530 = 2345154313
BaseRepresentation
bin1110111001100…
…11111111111010
322201012022220000
413130303333322
5223444243110
620223013430
73045266424
oct734637772
9281168800
10124993530
1164612542
1235a3a276
131cb84a8c
1412859814
15ae901c0
hex7733ffa

124993530 has 40 divisors (see below), whose sum is σ = 336095892. Its totient is φ = 33331392.

The previous prime is 124993529. The next prime is 124993541. The reversal of 124993530 is 35399421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 113358609 + 11634921 = 10647^2 + 3411^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 76347 + ... + 77966.

Almost surely, 2124993530 is an apocalyptic number.

124993530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124993530 is an abundant number, since it is smaller than the sum of its proper divisors (211102362).

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

124993530 is a wasteful number, since it uses less digits than its factorization.

124993530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154332 (or 154323 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 124993530 is about 11180.0505365584. The cubic root of 124993530 is about 499.9913731845.

The spelling of 124993530 in words is "one hundred twenty-four million, nine hundred ninety-three thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 154313 308626 462939 771565 925878 1388817 1543130 2314695 2777634 4166451 4629390 6944085 8332902 12499353 13888170 20832255 24998706 41664510 62496765 124993530