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15140013 = 371742409
BaseRepresentation
bin111001110000…
…010010101101
31001111012012020
4321300102231
512333440023
61300300353
7242454660
oct71602255
931435166
1015140013
118600a09
1250a16b9
1331a12b5
1420216d7
1514e0de3
hexe704ad

15140013 has 16 divisors (see below), whose sum is σ = 24428160. Its totient is φ = 8142336.

The previous prime is 15140011. The next prime is 15140023. The reversal of 15140013 is 31004151.

15140013 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15140013 - 21 = 15140011 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15139974 and 15140001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15140011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20848 + ... + 21561.

It is an arithmetic number, because the mean of its divisors is an integer number (1526760).

Almost surely, 215140013 is an apocalyptic number.

It is an amenable number.

15140013 is a deficient number, since it is larger than the sum of its proper divisors (9288147).

15140013 is a wasteful number, since it uses less digits than its factorization.

15140013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42436.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 15140013 is about 3891.0169621835. The cubic root of 15140013 is about 247.3861694690.

Adding to 15140013 its reverse (31004151), we get a palindrome (46144164).

The spelling of 15140013 in words is "fifteen million, one hundred forty thousand, thirteen".

Divisors: 1 3 7 17 21 51 119 357 42409 127227 296863 720953 890589 2162859 5046671 15140013