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56230121605 = 5716711298521
BaseRepresentation
bin110100010111100100…
…111001000010000101
312101010202220010210111
4310113210321002011
51410124402342410
641455354353021
74030302101410
oct642744710205
9171122803714
1056230121605
112193548a689
12aa9342b771
1353c170b208
142a15d22b77
1516e17d6b8a
hexd17939085

56230121605 has 32 divisors (see below), whose sum is σ = 77655191040. Its totient is φ = 38288471040.

The previous prime is 56230121599. The next prime is 56230121609. The reversal of 56230121605 is 50612103265.

It is not a de Polignac number, because 56230121605 - 235 = 21870383237 is a prime.

It is a super-3 number, since 3×562301216053 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56230121609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6594745 + ... + 6603265.

It is an arithmetic number, because the mean of its divisors is an integer number (2426724720).

Almost surely, 256230121605 is an apocalyptic number.

It is an amenable number.

56230121605 is a deficient number, since it is larger than the sum of its proper divisors (21425069435).

56230121605 is a wasteful number, since it uses less digits than its factorization.

56230121605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9829.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 56230121605 in words is "fifty-six billion, two hundred thirty million, one hundred twenty-one thousand, six hundred five".

Divisors: 1 5 7 35 167 835 1129 1169 5645 5845 7903 8521 39515 42605 59647 188543 298235 942715 1319801 1423007 6599005 7115035 9620209 9961049 48101045 49805245 67341463 336707315 1606574903 8032874515 11246024321 56230121605