Search a number
-
+
12494805757 = 74737978133
BaseRepresentation
bin10111010001011111…
…11001101011111101
31012020210011220020121
423220233321223331
5201042132241012
65423503014541
7621430045060
oct135057715375
935223156217
1012494805757
115331aa0555
12250859a451
13124181b5b5
148676208d7
154d1e0ea07
hex2e8bf9afd

12494805757 has 8 divisors (see below), whose sum is σ = 14583603456. Its totient is φ = 10481964432.

The previous prime is 12494805629. The next prime is 12494805767. The reversal of 12494805757 is 75750849421.

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 12494805757 - 27 = 12494805629 is a prime.

It is a super-2 number, since 2×124948057572 (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 (12494805767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18988738 + ... + 18989395.

It is an arithmetic number, because the mean of its divisors is an integer number (1822950432).

Almost surely, 212494805757 is an apocalyptic number.

It is an amenable number.

12494805757 is a deficient number, since it is larger than the sum of its proper divisors (2088797699).

12494805757 is an equidigital number, since it uses as much as digits as its factorization.

12494805757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37978187.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 12494805757 in words is "twelve billion, four hundred ninety-four million, eight hundred five thousand, seven hundred fifty-seven".

Divisors: 1 7 47 329 37978133 265846931 1784972251 12494805757