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125234440 = 23513722853
BaseRepresentation
bin1110111011011…
…10110100001000
322201122120100121
413131232310020
5224030000230
620232113024
73050321662
oct735566410
9281576317
10125234440
1164767541
1235b35774
131cc3a626
14128bd532
15aedb77a
hex776ed08

125234440 has 32 divisors (see below), whose sum is σ = 283846680. Its totient is φ = 49725952.

The previous prime is 125234437. The next prime is 125234479. The reversal of 125234440 is 44432521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 85266756 + 39967684 = 9234^2 + 6322^2 .

It is a super-2 number, since 2×1252344402 = 31367329924227200, 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, 5947 + ... + 16906.

Almost surely, 2125234440 is an apocalyptic number.

125234440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125234440 is an abundant number, since it is smaller than the sum of its proper divisors (158612240).

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

125234440 is a wasteful number, since it uses less digits than its factorization.

125234440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23001 (or 22997 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 125234440 is about 11190.8194516756. The cubic root of 125234440 is about 500.3123914492.

Adding to 125234440 its reverse (44432521), we get a palindrome (169666961).

The spelling of 125234440 in words is "one hundred twenty-five million, two hundred thirty-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 137 274 548 685 1096 1370 2740 5480 22853 45706 91412 114265 182824 228530 457060 914120 3130861 6261722 12523444 15654305 25046888 31308610 62617220 125234440