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80025816 = 23313256493
BaseRepresentation
bin1001100010100…
…01100011011000
312120120201210010
410301101203120
5130441311231
611535121520
71661131263
oct461214330
9176521703
1080025816
1141199642
12229732a0
131376c070
14a8b1cda
15705b546
hex4c518d8

80025816 has 32 divisors (see below), whose sum is σ = 215454960. Its totient is φ = 24623232.

The previous prime is 80025797. The next prime is 80025823. The reversal of 80025816 is 61852008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127935 + ... + 128558.

Almost surely, 280025816 is an apocalyptic number.

It is an amenable number.

80025816 is an abundant number, since it is smaller than the sum of its proper divisors (135429144).

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

80025816 is a wasteful number, since it uses less digits than its factorization.

80025816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256515 (or 256511 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 80025816 is about 8945.7149518638. The cubic root of 80025816 is about 430.9332820933.

The spelling of 80025816 in words is "eighty million, twenty-five thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 256493 512986 769479 1025972 1538958 2051944 3077916 3334409 6155832 6668818 10003227 13337636 20006454 26675272 40012908 80025816