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23513503130 = 25131339913499
BaseRepresentation
bin10101111001100000…
…111001010110011010
32020200200210201110022
4111321200321112122
5341123424100010
614445115550442
71461454323155
oct257140712632
966620721408
1023513503130
119a76839a17
12468275b422
1322a9591480
1411d0b9ac9c
15929443d55
hex57983959a

23513503130 has 32 divisors (see below), whose sum is σ = 45586800000. Its totient is φ = 8680617792.

The previous prime is 23513503121. The next prime is 23513503133. The reversal of 23513503130 is 3130531532.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 23513503130.

It is not an unprimeable number, because it can be changed into a prime (23513503133) 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, 1735121 + ... + 1748619.

It is an arithmetic number, because the mean of its divisors is an integer number (1424587500).

Almost surely, 223513503130 is an apocalyptic number.

23513503130 is a deficient number, since it is larger than the sum of its proper divisors (22073296870).

23513503130 is a wasteful number, since it uses less digits than its factorization.

23513503130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26918.

The product of its (nonzero) digits is 4050, while the sum is 26.

The spelling of 23513503130 in words is "twenty-three billion, five hundred thirteen million, five hundred three thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 13399 13499 26798 26998 66995 67495 133990 134990 174187 175487 348374 350974 870935 877435 1741870 1754870 180873101 361746202 904365505 1808731010 2351350313 4702700626 11756751565 23513503130