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15142672 = 24946417
BaseRepresentation
bin111001110000…
…111100010000
31001111022211201
4321300330100
512334031142
61300320544
7242465506
oct71607420
931438751
1015142672
118602a06
1250a3154
1331a257c
142022676
1514e1ab7
hexe70f10

15142672 has 10 divisors (see below), whose sum is σ = 29338958. Its totient is φ = 7571328.

The previous prime is 15142661. The next prime is 15142679. The reversal of 15142672 is 27624151.

It can be written as a sum of positive squares in only one way, i.e., 8088336 + 7054336 = 2844^2 + 2656^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15142672.

It is not an unprimeable number, because it can be changed into a prime (15142679) 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 as a sum of consecutive naturals, namely, 473193 + ... + 473224.

Almost surely, 215142672 is an apocalyptic number.

It is an amenable number.

15142672 is a deficient number, since it is larger than the sum of its proper divisors (14196286).

15142672 is an equidigital number, since it uses as much as digits as its factorization.

15142672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946425 (or 946419 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 15142672 is about 3891.3586316350. The cubic root of 15142672 is about 247.4006512118.

It can be divided in two parts, 1514 and 2672, that added together give a triangular number (4186 = T91).

The spelling of 15142672 in words is "fifteen million, one hundred forty-two thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 946417 1892834 3785668 7571336 15142672