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12494040 = 2335138009
BaseRepresentation
bin101111101010…
…010011011000
3212111202121020
4233222103120
511144302130
61123442440
7211124526
oct57522330
925452536
1012494040
117063a59
124226420
132785b30
141933316
15116be10
hexbea4d8

12494040 has 64 divisors (see below), whose sum is σ = 40370400. Its totient is φ = 3075072.

The previous prime is 12494033. The next prime is 12494047. The reversal of 12494040 is 4049421.

It is an interprime number because it is at equal distance from previous prime (12494033) and next prime (12494047).

It is a super-2 number, since 2×124940402 = 312202071043200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12494040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12494047) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2445 + ... + 5564.

Almost surely, 212494040 is an apocalyptic number.

12494040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12494040 is an abundant number, since it is smaller than the sum of its proper divisors (27876360).

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

12494040 is a wasteful number, since it uses less digits than its factorization.

12494040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036 (or 8032 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 12494040 is about 3534.6909341553. The cubic root of 12494040 is about 232.0425506575.

The spelling of 12494040 in words is "twelve million, four hundred ninety-four thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 195 260 312 390 520 780 1560 8009 16018 24027 32036 40045 48054 64072 80090 96108 104117 120135 160180 192216 208234 240270 312351 320360 416468 480540 520585 624702 832936 961080 1041170 1249404 1561755 2082340 2498808 3123510 4164680 6247020 12494040