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12525325320 = 2335104377711
BaseRepresentation
bin10111010101001000…
…10100110000001000
31012022220121110012210
423222210110300020
5201122440402240
65430513105120
7622250336304
oct135244246010
935286543183
1012525325320
115348246332
1225168581a0
131247c45c01
1486b6c6d04
154d493c780
hex2ea914c08

12525325320 has 32 divisors (see below), whose sum is σ = 37575976320. Its totient is φ = 3340086720.

The previous prime is 12525325279. The next prime is 12525325361. The reversal of 12525325320 is 2352352521.

It is an interprime number because it is at equal distance from previous prime (12525325279) and next prime (12525325361).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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, 52188736 + ... + 52188975.

It is an arithmetic number, because the mean of its divisors is an integer number (1174249260).

Almost surely, 212525325320 is an apocalyptic number.

12525325320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12525325320 is an abundant number, since it is smaller than the sum of its proper divisors (25050651000).

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

12525325320 is a wasteful number, since it uses less digits than its factorization.

12525325320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104377725 (or 104377721 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 12525325320 its reverse (2352352521), we get a palindrome (14877677841).

The spelling of 12525325320 in words is "twelve billion, five hundred twenty-five million, three hundred twenty-five thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 104377711 208755422 313133133 417510844 521888555 626266266 835021688 1043777110 1252532532 1565665665 2087554220 2505065064 3131331330 4175108440 6262662660 12525325320