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28041965492 = 2231226144883
BaseRepresentation
bin11010000111011011…
…100110111110110100
32200101021220102222112
4122013123212332310
5424412220343432
620514324350152
72011622526302
oct320733467664
980337812875
1028041965492
111098aa5a7a2
125527245358
13284b8220b8
141500395272
15ae1ca57b2
hex6876e6fb4

28041965492 has 12 divisors (see below), whose sum is σ = 50656454016. Its totient is φ = 13568692920.

The previous prime is 28041965491. The next prime is 28041965543. The reversal of 28041965492 is 29456914082.

It is a super-3 number, since 3×280419654923 (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28041965492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28041965491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113072318 + ... + 113072565.

It is an arithmetic number, because the mean of its divisors is an integer number (4221371168).

Almost surely, 228041965492 is an apocalyptic number.

It is an amenable number.

28041965492 is a deficient number, since it is larger than the sum of its proper divisors (22614488524).

28041965492 is a wasteful number, since it uses less digits than its factorization.

28041965492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226144918 (or 226144916 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 28041965492 in words is "twenty-eight billion, forty-one million, nine hundred sixty-five thousand, four hundred ninety-two".

Divisors: 1 2 4 31 62 124 226144883 452289766 904579532 7010491373 14020982746 28041965492