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12272338290 = 235409077943
BaseRepresentation
bin10110110110111110…
…10000010101110010
31011200021120101020210
423123133100111302
5200113204311130
65345434444550
7613056103632
oct133337202562
934607511223
1012272338290
115228462443
122465b93756
1312076c8a44
14845c706c2
154bc6185b0
hex2db7d0572

12272338290 has 16 divisors (see below), whose sum is σ = 29453611968. Its totient is φ = 3272623536.

The previous prime is 12272338277. The next prime is 12272338333. The reversal of 12272338290 is 9283327221.

It is a super-2 number, since 2×122723382902 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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, 204538942 + ... + 204539001.

It is an arithmetic number, because the mean of its divisors is an integer number (1840850748).

Almost surely, 212272338290 is an apocalyptic number.

12272338290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12272338290 is an abundant number, since it is smaller than the sum of its proper divisors (17181273678).

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

12272338290 is a wasteful number, since it uses less digits than its factorization.

12272338290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409077953.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 12272338290 in words is "twelve billion, two hundred seventy-two million, three hundred thirty-eight thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 409077943 818155886 1227233829 2045389715 2454467658 4090779430 6136169145 12272338290