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56229886830 = 23513144179197
BaseRepresentation
bin110100010111100011…
…111111101101101110
312101010202110012202010
4310113203333231232
51410124322334310
641455345342050
74030300103055
oct642743775556
9171122405663
1056229886830
112193533a257
12aa93337926
1353c16583b0
142a15ca139c
1516e178c320
hexd178ffb6e

56229886830 has 32 divisors (see below), whose sum is σ = 145332631584. Its totient is φ = 13841202816.

The previous prime is 56229886799. The next prime is 56229886831. The reversal of 56229886830 is 3868892265.

It is a super-4 number, since 4×562298868304 (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56229886831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72089209 + ... + 72089988.

It is an arithmetic number, because the mean of its divisors is an integer number (4541644737).

Almost surely, 256229886830 is an apocalyptic number.

56229886830 is an abundant number, since it is smaller than the sum of its proper divisors (89102744754).

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

56229886830 is a wasteful number, since it uses less digits than its factorization.

56229886830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144179220.

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 56229886830 in words is "fifty-six billion, two hundred twenty-nine million, eight hundred eighty-six thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 144179197 288358394 432537591 720895985 865075182 1441791970 1874329561 2162687955 3748659122 4325375910 5622988683 9371647805 11245977366 18743295610 28114943415 56229886830