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15272149 is a prime number
BaseRepresentation
bin111010010000…
…100011010101
31001201220110011
4322100203111
512402202044
61303200221
7243545134
oct72204325
931656404
1015272149
118691212
125146071
133219499
14205791b
15151a134
hexe908d5

15272149 has 2 divisors, whose sum is σ = 15272150. Its totient is φ = 15272148.

The previous prime is 15272141. The next prime is 15272167. The reversal of 15272149 is 94127251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15171025 + 101124 = 3895^2 + 318^2 .

It is an emirp because it is prime and its reverse (94127251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15272149 - 23 = 15272141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15272149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15272141) 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, 7636074 + 7636075.

It is an arithmetic number, because the mean of its divisors is an integer number (7636075).

Almost surely, 215272149 is an apocalyptic number.

It is an amenable number.

15272149 is a deficient number, since it is larger than the sum of its proper divisors (1).

15272149 is an equidigital number, since it uses as much as digits as its factorization.

15272149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 31.

The square root of 15272149 is about 3907.9596978475. The cubic root of 15272149 is about 248.1037817893.

The spelling of 15272149 in words is "fifteen million, two hundred seventy-two thousand, one hundred forty-nine".