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80313740 = 22513308899
BaseRepresentation
bin1001100100101…
…11110110001100
312121010100201222
410302113312030
5131030014430
611545222512
71663440563
oct462276614
9177110658
1080313740
11413759a1
1222a91a38
1313840130
14a948bda
1570b69e5
hex4c97d8c

80313740 has 24 divisors (see below), whose sum is σ = 181633200. Its totient is φ = 29654208.

The previous prime is 80313721. The next prime is 80313743. The reversal of 80313740 is 4731308.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (80313743) 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, 154190 + ... + 154709.

It is an arithmetic number, because the mean of its divisors is an integer number (7568050).

Almost surely, 280313740 is an apocalyptic number.

It is an amenable number.

80313740 is an abundant number, since it is smaller than the sum of its proper divisors (101319460).

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

80313740 is a wasteful number, since it uses less digits than its factorization.

80313740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308921 (or 308919 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 80313740 is about 8961.7933473161. The cubic root of 80313740 is about 431.4494802124.

The spelling of 80313740 in words is "eighty million, three hundred thirteen thousand, seven hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 308899 617798 1235596 1544495 3088990 4015687 6177980 8031374 16062748 20078435 40156870 80313740