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15304042 = 2131135209
BaseRepresentation
bin111010011000…
…010101101010
31001210112012101
4322120111222
512404212132
61304004014
7244040125
oct72302552
931715171
1015304042
118703176
12516060a
13322ab60
1420653bc
1515247e7
hexe9856a

15304042 has 16 divisors (see below), whose sum is σ = 24945480. Its totient is φ = 6999552.

The previous prime is 15304031. The next prime is 15304067. The reversal of 15304042 is 24040351.

15304042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10556001 + 4748041 = 3249^2 + 2179^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334 + ... + 5542.

Almost surely, 215304042 is an apocalyptic number.

15304042 is a deficient number, since it is larger than the sum of its proper divisors (9641438).

15304042 is a wasteful number, since it uses less digits than its factorization.

15304042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 15304042 is about 3912.0380877491. The cubic root of 15304042 is about 248.2763676771.

Adding to 15304042 its reverse (24040351), we get a palindrome (39344393).

The spelling of 15304042 in words is "fifteen million, three hundred four thousand, forty-two".

Divisors: 1 2 13 26 113 226 1469 2938 5209 10418 67717 135434 588617 1177234 7652021 15304042