Search a number
-
+
12497861084 = 22109127722447
BaseRepresentation
bin10111010001110111…
…00011100111011100
31012020222221010100212
423220323203213130
5201043423023314
65424052311552
7621465031532
oct135073434734
935228833325
1012497861084
115333798015
1225096125b8
13124234b197
14867bb8152
154d2314e3e
hex2e8ee39dc

12497861084 has 24 divisors (see below), whose sum is σ = 22090178880. Its totient is φ = 6186476736.

The previous prime is 12497861081. The next prime is 12497861111. The reversal of 12497861084 is 48016879421.

It is a super-4 number, since 4×124978610844 (a number of 41 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12497861081) 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, 545549 + ... + 567995.

It is an arithmetic number, because the mean of its divisors is an integer number (920424120).

Almost surely, 212497861084 is an apocalyptic number.

It is an amenable number.

12497861084 is a deficient number, since it is larger than the sum of its proper divisors (9592317796).

12497861084 is a wasteful number, since it uses less digits than its factorization.

12497861084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23837 (or 23835 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 12497861084 in words is "twelve billion, four hundred ninety-seven million, eight hundred sixty-one thousand, eighty-four".

Divisors: 1 2 4 109 218 436 1277 2554 5108 22447 44894 89788 139193 278386 556772 2446723 4893446 9786892 28664819 57329638 114659276 3124465271 6248930542 12497861084