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842920480 = 2555399401
BaseRepresentation
bin110010001111011…
…111001000100000
32011202002210112001
4302033133020200
53211241423410
6215350413344
726613464053
oct6217371040
92152083461
10842920480
113a28966a6
121b6361254
1310582cb1c
147dd3ca9a
154e00433a
hex323df220

842920480 has 48 divisors (see below), whose sum is σ = 2028993624. Its totient is φ = 330803200.

The previous prime is 842920453. The next prime is 842920483. The reversal of 842920480 is 84029248.

It can be written as a sum of positive squares in 4 ways, for example, as 778856464 + 64064016 = 27908^2 + 8004^2 .

It is not an unprimeable number, because it can be changed into a prime (842920483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41221 + ... + 58180.

Almost surely, 2842920480 is an apocalyptic number.

842920480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

842920480 is an abundant number, since it is smaller than the sum of its proper divisors (1186073144).

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

842920480 is a wasteful number, since it uses less digits than its factorization.

842920480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99469 (or 99461 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 842920480 is about 29033.0928424789. The cubic root of 842920480 is about 944.6310178219.

The spelling of 842920480 in words is "eight hundred forty-two million, nine hundred twenty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 53 80 106 160 212 265 424 530 848 1060 1696 2120 4240 8480 99401 198802 397604 497005 795208 994010 1590416 1988020 3180832 3976040 5268253 7952080 10536506 15904160 21073012 26341265 42146024 52682530 84292048 105365060 168584096 210730120 421460240 842920480