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12472956 = 22322331487
BaseRepresentation
bin101111100101…
…001001111100
3212110200200100
4233211021330
511143113311
61123201100
7211006206
oct57451174
925420610
1012472956
11704a131
124216190
132779362
141929776
151165a56
hexbe527c

12472956 has 36 divisors (see below), whose sum is σ = 31685472. Its totient is φ = 4137024.

The previous prime is 12472931. The next prime is 12472961. The reversal of 12472956 is 65927421.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12472956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7645 + ... + 9131.

It is an arithmetic number, because the mean of its divisors is an integer number (880152).

Almost surely, 212472956 is an apocalyptic number.

It is an amenable number.

12472956 is an abundant number, since it is smaller than the sum of its proper divisors (19212516).

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

12472956 is a wasteful number, since it uses less digits than its factorization.

12472956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730 (or 1725 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 12472956 is about 3531.7072358847. The cubic root of 12472956 is about 231.9119513284.

The spelling of 12472956 in words is "twelve million, four hundred seventy-two thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 233 466 699 932 1398 1487 2097 2796 2974 4194 4461 5948 8388 8922 13383 17844 26766 53532 346471 692942 1039413 1385884 2078826 3118239 4157652 6236478 12472956