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15057434 = 271075531
BaseRepresentation
bin111001011100…
…001000011010
31001022222220202
4321130020122
512323314214
61254422202
7241662140
oct71341032
931288822
1015057434
118554967
125061962
133172832
141ddd590
1514c66de
hexe5c21a

15057434 has 8 divisors (see below), whose sum is σ = 25812768. Its totient is φ = 6453180.

The previous prime is 15057431. The next prime is 15057457. The reversal of 15057434 is 43475051.

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 = 15057397 and 15057406.

It is not an unprimeable number, because it can be changed into a prime (15057431) 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, 537752 + ... + 537779.

It is an arithmetic number, because the mean of its divisors is an integer number (3226596).

Almost surely, 215057434 is an apocalyptic number.

15057434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15057434 is a deficient number, since it is larger than the sum of its proper divisors (10755334).

15057434 is a wasteful number, since it uses less digits than its factorization.

15057434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075540.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 15057434 is about 3880.3909596843. The cubic root of 15057434 is about 246.9355719342.

The spelling of 15057434 in words is "fifteen million, fifty-seven thousand, four hundred thirty-four".

Divisors: 1 2 7 14 1075531 2151062 7528717 15057434