Search a number
-
+
12530607357 = 37952871761
BaseRepresentation
bin10111010101110000…
…11110010011111101
31012100021112210210210
423222320132103331
5201130313413412
65431222223033
7622343255652
oct135270362375
935307483723
1012530607357
115350223854
122518584a79
131249075188
1486c29dc29
154d513283c
hex2eae1e4fd

12530607357 has 8 divisors (see below), whose sum is σ = 16918963840. Its totient is φ = 8247994560.

The previous prime is 12530607277. The next prime is 12530607379. The reversal of 12530607357 is 75370603521.

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

It is not a de Polignac number, because 12530607357 - 28 = 12530607101 is a prime.

It is a super-2 number, since 2×125306073572 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530607457) 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, 26435644 + ... + 26436117.

It is an arithmetic number, because the mean of its divisors is an integer number (2114870480).

Almost surely, 212530607357 is an apocalyptic number.

It is an amenable number.

12530607357 is a deficient number, since it is larger than the sum of its proper divisors (4388356483).

12530607357 is an equidigital number, since it uses as much as digits as its factorization.

12530607357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52871843.

The product of its (nonzero) digits is 132300, while the sum is 39.

The spelling of 12530607357 in words is "twelve billion, five hundred thirty million, six hundred seven thousand, three hundred fifty-seven".

Divisors: 1 3 79 237 52871761 158615283 4176869119 12530607357