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13456227972 = 22311101941121
BaseRepresentation
bin11001000100000110…
…11011111010000100
31021201210021012120210
430202003123322010
5210024243243342
610103125355420
7654313023225
oct144203337204
937653235523
1013456227972
115785765270
122736568b70
131365a6c395
149191a924c
1553b52079c
hex3220dbe84

13456227972 has 24 divisors (see below), whose sum is σ = 34252216992. Its totient is φ = 4077644800.

The previous prime is 13456227959. The next prime is 13456227979. The reversal of 13456227972 is 27972265431.

It is not an unprimeable number, because it can be changed into a prime (13456227979) 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, 50970429 + ... + 50970692.

It is an arithmetic number, because the mean of its divisors is an integer number (1427175708).

Almost surely, 213456227972 is an apocalyptic number.

13456227972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13456227972 is an abundant number, since it is smaller than the sum of its proper divisors (20795989020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13456227972 is a wasteful number, since it uses less digits than its factorization.

13456227972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101941139 (or 101941137 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The spelling of 13456227972 in words is "thirteen billion, four hundred fifty-six million, two hundred twenty-seven thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 101941121 203882242 305823363 407764484 611646726 1121352331 1223293452 2242704662 3364056993 4485409324 6728113986 13456227972