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15011013 = 35003671
BaseRepresentation
bin111001010000…
…110011000101
31001020122020110
4321100303011
512320323023
61253423233
7241406613
oct71206305
931218213
1015011013
118522aa6
12503ab19
133157674
141dca6b3
1514b7a93
hexe50cc5

15011013 has 4 divisors (see below), whose sum is σ = 20014688. Its totient is φ = 10007340.

The previous prime is 15010997. The next prime is 15011021. The reversal of 15011013 is 31011051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31011051 = 310337017.

It is not a de Polignac number, because 15011013 - 24 = 15010997 is a prime.

It is a super-2 number, since 2×150110132 = 450661022572338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15011013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15011023) 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, 2501833 + ... + 2501838.

It is an arithmetic number, because the mean of its divisors is an integer number (5003672).

Almost surely, 215011013 is an apocalyptic number.

It is an amenable number.

15011013 is a deficient number, since it is larger than the sum of its proper divisors (5003675).

15011013 is an equidigital number, since it uses as much as digits as its factorization.

15011013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003674.

The product of its (nonzero) digits is 15, while the sum is 12.

The square root of 15011013 is about 3874.4048575233. The cubic root of 15011013 is about 246.6815490980.

Adding to 15011013 its reverse (31011051), we get a palindrome (46022064).

The spelling of 15011013 in words is "fifteen million, eleven thousand, thirteen".

Divisors: 1 3 5003671 15011013