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42810790986 = 23288313212039
BaseRepresentation
bin100111110111101110…
…001101010001001010
311002111120001111212100
4213313232031101022
51200134030302421
631400023454230
73043614501465
oct476756152112
9132446044770
1042810790986
11171796369a7
1283692b7376
1340634ba3b2
142101a002dc
1511a8653c26
hex9f7b8d44a

42810790986 has 48 divisors (see below), whose sum is σ = 92977634880. Its totient is φ = 14236326720.

The previous prime is 42810790963. The next prime is 42810790987. The reversal of 42810790986 is 68909701824.

It is not an unprimeable number, because it can be changed into a prime (42810790987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20994955 + ... + 20996993.

It is an arithmetic number, because the mean of its divisors is an integer number (1937034060).

Almost surely, 242810790986 is an apocalyptic number.

42810790986 is an abundant number, since it is smaller than the sum of its proper divisors (50166843894).

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

42810790986 is a wasteful number, since it uses less digits than its factorization.

42810790986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251 (or 4248 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 42810790986 in words is "forty-two billion, eight hundred ten million, seven hundred ninety thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 9 18 883 1321 1766 2039 2642 2649 3963 4078 5298 6117 7926 7947 11889 12234 15894 18351 23778 36702 1166443 1800437 2332886 2693519 3499329 3600874 5387038 5401311 6998658 8080557 10497987 10802622 16161114 16203933 20995974 24241671 32407866 48483342 2378377277 4756754554 7135131831 14270263662 21405395493 42810790986