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15085972 = 2211342863
BaseRepresentation
bin111001100011…
…000110010100
31001101110001201
4321203012110
512330222342
61255202244
7242141266
oct71430624
931343051
1015085972
118574350
125076384
133182815
142009b36
1514cedb7
hexe63194

15085972 has 12 divisors (see below), whose sum is σ = 28800576. Its totient is φ = 6857240.

The previous prime is 15085969. The next prime is 15085979. The reversal of 15085972 is 27958051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15085979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171388 + ... + 171475.

It is an arithmetic number, because the mean of its divisors is an integer number (2400048).

Almost surely, 215085972 is an apocalyptic number.

It is an amenable number.

15085972 is a deficient number, since it is larger than the sum of its proper divisors (13714604).

15085972 is a wasteful number, since it uses less digits than its factorization.

15085972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342878 (or 342876 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 15085972 is about 3884.0664257966. The cubic root of 15085972 is about 247.0914772055.

The spelling of 15085972 in words is "fifteen million, eighty-five thousand, nine hundred seventy-two".

Divisors: 1 2 4 11 22 44 342863 685726 1371452 3771493 7542986 15085972