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80413940 = 22523916823
BaseRepresentation
bin1001100101100…
…00010011110100
312121022110012002
410302300103310
5131041221230
611551314432
71664335655
oct462602364
9177273162
1080413940
1141434202
1222b1ba18
1313876919
14a97352c
1570d6545
hex4cb04f4

80413940 has 24 divisors (see below), whose sum is σ = 169585920. Its totient is φ = 32029088.

The previous prime is 80413919. The next prime is 80413943. The reversal of 80413940 is 4931408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80413943) 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, 3632 + ... + 13191.

It is an arithmetic number, because the mean of its divisors is an integer number (7066080).

Almost surely, 280413940 is an apocalyptic number.

It is an amenable number.

80413940 is an abundant number, since it is smaller than the sum of its proper divisors (89171980).

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

80413940 is a wasteful number, since it uses less digits than its factorization.

80413940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17071 (or 17069 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 80413940 is about 8967.3820036842. The cubic root of 80413940 is about 431.6288321383.

The spelling of 80413940 in words is "eighty million, four hundred thirteen thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 239 478 956 1195 2390 4780 16823 33646 67292 84115 168230 336460 4020697 8041394 16082788 20103485 40206970 80413940