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12550430112 = 2531119959723
BaseRepresentation
bin10111011000001000…
…00101110110100000
31012101122211220111220
423230010011312200
5201200402230422
65433211135040
7623003616153
oct135404056640
935348756456
1012550430112
1153604329a0
122523144480
1312501c5a0c
14870b7dc9a
154d6c4ae5c
hex2ec105da0

12550430112 has 96 divisors (see below), whose sum is σ = 36121075200. Its totient is φ = 3783985920.

The previous prime is 12550430111. The next prime is 12550430117. The reversal of 12550430112 is 21103405521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×125504301123 (a number of 31 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (12550430111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180283 + ... + 240005.

It is an arithmetic number, because the mean of its divisors is an integer number (376261200).

Almost surely, 212550430112 is an apocalyptic number.

12550430112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12550430112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18060537600).

12550430112 is an abundant number, since it is smaller than the sum of its proper divisors (23570645088).

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

12550430112 is a wasteful number, since it uses less digits than its factorization.

12550430112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59946 (or 59938 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 12550430112 its reverse (21103405521), we get a palindrome (33653835633).

The spelling of 12550430112 in words is "twelve billion, five hundred fifty million, four hundred thirty thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 199 264 352 398 528 597 796 1056 1194 1592 2189 2388 3184 4378 4776 6368 6567 8756 9552 13134 17512 19104 26268 35024 52536 59723 70048 105072 119446 179169 210144 238892 358338 477784 656953 716676 955568 1313906 1433352 1911136 1970859 2627812 2866704 3941718 5255624 5733408 7883436 10511248 11884877 15766872 21022496 23769754 31533744 35654631 47539508 63067488 71309262 95079016 130733647 142618524 190158032 261467294 285237048 380316064 392200941 522934588 570474096 784401882 1045869176 1140948192 1568803764 2091738352 3137607528 4183476704 6275215056 12550430112