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15232061 = 1311310369
BaseRepresentation
bin111010000110…
…110000111101
31001122212110102
4322012300331
512344411221
61302250445
7243320225
oct72066075
931585412
1015232061
118664089
125126a25
133204170
142047085
15150d30b
hexe86c3d

15232061 has 8 divisors (see below), whose sum is σ = 16550520. Its totient is φ = 13934592.

The previous prime is 15232043. The next prime is 15232081. The reversal of 15232061 is 16023251.

It can be written as a sum of positive squares in 4 ways, for example, as 2343961 + 12888100 = 1531^2 + 3590^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15232061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15232001) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3716 + ... + 6653.

It is an arithmetic number, because the mean of its divisors is an integer number (2068815).

Almost surely, 215232061 is an apocalyptic number.

It is an amenable number.

15232061 is a deficient number, since it is larger than the sum of its proper divisors (1318459).

15232061 is a wasteful number, since it uses less digits than its factorization.

15232061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10495.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 15232061 is about 3902.8273085034. The cubic root of 15232061 is about 247.8865082947.

The spelling of 15232061 in words is "fifteen million, two hundred thirty-two thousand, sixty-one".

Divisors: 1 13 113 1469 10369 134797 1171697 15232061