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12513748 = 22132310463
BaseRepresentation
bin101111101111…
…000111010100
3212112202122011
4233233013110
511200414443
61124114004
7211236142
oct57570724
925482564
1012513748
117077845
124235904
132791ab0
14193a592
151172b9d
hexbef1d4

12513748 has 24 divisors (see below), whose sum is σ = 24611328. Its totient is φ = 5523936.

The previous prime is 12513727. The next prime is 12513749. The reversal of 12513748 is 84731521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4036 + ... + 6427.

It is an arithmetic number, because the mean of its divisors is an integer number (1025472).

Almost surely, 212513748 is an apocalyptic number.

It is an amenable number.

12513748 is a deficient number, since it is larger than the sum of its proper divisors (12097580).

12513748 is a wasteful number, since it uses less digits than its factorization.

12513748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10503 (or 10501 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 12513748 is about 3537.4776324381. The cubic root of 12513748 is about 232.1644939247.

The spelling of 12513748 in words is "twelve million, five hundred thirteen thousand, seven hundred forty-eight".

Divisors: 1 2 4 13 23 26 46 52 92 299 598 1196 10463 20926 41852 136019 240649 272038 481298 544076 962596 3128437 6256874 12513748