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12515230104 = 2331323085609
BaseRepresentation
bin10111010011111011…
…10100000110011000
31012022012121120011220
423221331310012120
5201112344330404
65425512452040
7622065462216
oct135175640630
935265546156
1012515230104
115342580683
1225133aa020
131245b1cc00
1486a219cb6
154d3ae64d9
hex2e9f74198

12515230104 has 48 divisors (see below), whose sum is σ = 33879997800. Its totient is φ = 3850838784.

The previous prime is 12515230081. The next prime is 12515230129. The reversal of 12515230104 is 40103251521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1538749 + ... + 1546860.

Almost surely, 212515230104 is an apocalyptic number.

It is an amenable number.

12515230104 is an abundant number, since it is smaller than the sum of its proper divisors (21364767696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12515230104 is a wasteful number, since it uses less digits than its factorization.

12515230104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085644 (or 3085627 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 12515230104 its reverse (40103251521), we get a palindrome (52618481625).

The spelling of 12515230104 in words is "twelve billion, five hundred fifteen million, two hundred thirty thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 169 312 338 507 676 1014 1352 2028 4056 3085609 6171218 9256827 12342436 18513654 24684872 37027308 40112917 74054616 80225834 120338751 160451668 240677502 320903336 481355004 521467921 962710008 1042935842 1564403763 2085871684 3128807526 4171743368 6257615052 12515230104