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12864469922 = 247391734939
BaseRepresentation
bin10111111101100100…
…00011101110100010
31020012112202210010222
423332302003232202
5202321301014142
65524310123042
7633536122133
oct137662035642
936175683128
1012864469922
115501726727
1225b0350482
1312a029b0a5
148a0769c8a
155045cebd2
hex2fec83ba2

12864469922 has 16 divisors (see below), whose sum is σ = 19712868480. Its totient is φ = 6293591568.

The previous prime is 12864469921. The next prime is 12864469927. The reversal of 12864469922 is 22996446821.

It is not an unprimeable number, because it can be changed into a prime (12864469921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350729 + ... + 385667.

It is an arithmetic number, because the mean of its divisors is an integer number (1232054280).

Almost surely, 212864469922 is an apocalyptic number.

12864469922 is a deficient number, since it is larger than the sum of its proper divisors (6848398558).

12864469922 is a wasteful number, since it uses less digits than its factorization.

12864469922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38905.

The product of its digits is 2985984, while the sum is 53.

The spelling of 12864469922 in words is "twelve billion, eight hundred sixty-four million, four hundred sixty-nine thousand, nine hundred twenty-two".

Divisors: 1 2 47 94 3917 7834 34939 69878 184099 368198 1642133 3284266 136856063 273712126 6432234961 12864469922