Search a number
-
+
12521088331 = 19798341831
BaseRepresentation
bin10111010100101000…
…01010010101001011
31012022121122012011021
423222110022111023
5201120344311311
65430242213311
7622166331463
oct135224122513
935277565137
1012521088331
115345911a94
122515354237
1312470c150b
1486ad02ba3
154d43a2171
hex2ea50a54b

12521088331 has 8 divisors (see below), whose sum is σ = 13346931200. Its totient is φ = 11711929320.

The previous prime is 12521088311. The next prime is 12521088379. The reversal of 12521088331 is 13388012521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12521088331 - 29 = 12521087819 is a prime.

It is a super-2 number, since 2×125210883312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12521088311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4169415 + ... + 4172416.

It is an arithmetic number, because the mean of its divisors is an integer number (1668366400).

Almost surely, 212521088331 is an apocalyptic number.

12521088331 is a deficient number, since it is larger than the sum of its proper divisors (825842869).

12521088331 is an equidigital number, since it uses as much as digits as its factorization.

12521088331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8341929.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 12521088331 in words is "twelve billion, five hundred twenty-one million, eighty-eight thousand, three hundred thirty-one".

Divisors: 1 19 79 1501 8341831 158494789 659004649 12521088331