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42980569812 = 22332851139589
BaseRepresentation
bin101000000001110101…
…110111001011010100
311002221101112011122000
4220001311313023110
51201011011213222
631424530435300
73051045546465
oct500165671324
9132841464560
1042980569812
1117256458284
1283b6132b30
13408c722b3b
14211a396d6c
1511b84dd9ac
hexa01d772d4

42980569812 has 48 divisors (see below), whose sum is σ = 111470990400. Its totient is φ = 14321728800.

The previous prime is 42980569781. The next prime is 42980569831. The reversal of 42980569812 is 21896508924.

It is a happy number.

42980569812 is a `hidden beast` number, since 429 + 80 + 5 + 69 + 81 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238114 + ... + 377702.

It is an arithmetic number, because the mean of its divisors is an integer number (2322312300).

Almost surely, 242980569812 is an apocalyptic number.

It is an amenable number.

42980569812 is an abundant number, since it is smaller than the sum of its proper divisors (68490420588).

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

42980569812 is a wasteful number, since it uses less digits than its factorization.

42980569812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142453 (or 142445 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 42980569812 in words is "forty-two billion, nine hundred eighty million, five hundred sixty-nine thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 2851 5702 8553 11404 17106 25659 34212 51318 76977 102636 139589 153954 279178 307908 418767 558356 837534 1256301 1675068 2512602 3768903 5025204 7537806 15075612 397968239 795936478 1193904717 1591872956 2387809434 3581714151 4775618868 7163428302 10745142453 14326856604 21490284906 42980569812