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15074942 = 219396709
BaseRepresentation
bin111001100000…
…011001111110
31001100212221012
4321200121332
512324344232
61255035222
7242064161
oct71403176
931325835
1015074942
118567033
12506bb12
13317a7ac
142005ad8
1514cb9b2
hexe6067e

15074942 has 8 divisors (see below), whose sum is σ = 23802600. Its totient is φ = 7140744.

The previous prime is 15074929. The next prime is 15074951. The reversal of 15074942 is 24947051.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 15074899 and 15074908.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 198317 + ... + 198392.

It is an arithmetic number, because the mean of its divisors is an integer number (2975325).

Almost surely, 215074942 is an apocalyptic number.

15074942 is a deficient number, since it is larger than the sum of its proper divisors (8727658).

15074942 is a wasteful number, since it uses less digits than its factorization.

15074942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396730.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 15074942 is about 3882.6462625380. The cubic root of 15074942 is about 247.0312428039.

The spelling of 15074942 in words is "fifteen million, seventy-four thousand, nine hundred forty-two".

Divisors: 1 2 19 38 396709 793418 7537471 15074942