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12227037378 = 235903345221
BaseRepresentation
bin10110110001100100…
…11100100011000010
31011120010022212002020
423120302130203002
5200020110144003
65341135502310
7611666050203
oct133062344302
934503285066
1012227037378
115204931176
122452987996
1311cb1c747a
1483dc3b5aa
154b866ad53
hex2d8c9c8c2

12227037378 has 16 divisors (see below), whose sum is σ = 24458288256. Its totient is φ = 4074976880.

The previous prime is 12227037373. The next prime is 12227037409. The reversal of 12227037378 is 87373072221.

It is a super-2 number, since 2×122270373782 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12227037371) 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, 137193 + ... + 208028.

It is an arithmetic number, because the mean of its divisors is an integer number (1528643016).

Almost surely, 212227037378 is an apocalyptic number.

12227037378 is an abundant number, since it is smaller than the sum of its proper divisors (12231250878).

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

12227037378 is a wasteful number, since it uses less digits than its factorization.

12227037378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351129.

The product of its (nonzero) digits is 197568, while the sum is 42.

The spelling of 12227037378 in words is "twelve billion, two hundred twenty-seven million, thirty-seven thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 5903 11806 17709 35418 345221 690442 1035663 2071326 2037839563 4075679126 6113518689 12227037378