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80017912 = 23131745259
BaseRepresentation
bin1001100010011…
…11100111111000
312120120022221101
410301033213320
5130441033122
611535021144
71661066242
oct461174770
9176508841
1080017912
1141193707
122296a7b4
13137685a0
14a8ad092
157059027
hex4c4f9f8

80017912 has 32 divisors (see below), whose sum is σ = 171082800. Its totient is φ = 34758144.

The previous prime is 80017907. The next prime is 80017921. The reversal of 80017912 is 21971008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20862 + ... + 24397.

Almost surely, 280017912 is an apocalyptic number.

It is an amenable number.

80017912 is an abundant number, since it is smaller than the sum of its proper divisors (91064888).

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

80017912 is a wasteful number, since it uses less digits than its factorization.

80017912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45295 (or 45291 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 80017912 is about 8945.2731651974. The cubic root of 80017912 is about 430.9190941351.

The spelling of 80017912 in words is "eighty million, seventeen thousand, nine hundred twelve".

Divisors: 1 2 4 8 13 17 26 34 52 68 104 136 221 442 884 1768 45259 90518 181036 362072 588367 769403 1176734 1538806 2353468 3077612 4706936 6155224 10002239 20004478 40008956 80017912