Search a number
-
+
80037940 = 22512731511
BaseRepresentation
bin1001100010101…
…00100000110100
312120121100102011
410301110200310
5130442203230
611535254004
71661211523
oct461244064
9176540364
1080037940
11411a7764
122297a304
1313774738
14a8b64ba
15705ee2a
hex4c54834

80037940 has 24 divisors (see below), whose sum is σ = 169408512. Its totient is φ = 31762080.

The previous prime is 80037913. The next prime is 80037983. The reversal of 80037940 is 4973008.

It is a happy number.

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, 13216 + ... + 18295.

It is an arithmetic number, because the mean of its divisors is an integer number (7058688).

Almost surely, 280037940 is an apocalyptic number.

It is an amenable number.

80037940 is an abundant number, since it is smaller than the sum of its proper divisors (89370572).

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

80037940 is a wasteful number, since it uses less digits than its factorization.

80037940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31647 (or 31645 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 80037940 is about 8946.3925690750. The cubic root of 80037940 is about 430.9550432847.

The spelling of 80037940 in words is "eighty million, thirty-seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 127 254 508 635 1270 2540 31511 63022 126044 157555 315110 630220 4001897 8003794 16007588 20009485 40018970 80037940