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80457401 = 557314437
BaseRepresentation
bin1001100101110…
…10111010111001
312121101122210202
410302322322321
5131044114101
611552251545
71664606453
oct462727271
9177348722
1080457401
1141463922
1222b40bb5
131389063b
14a9852d3
1570e436b
hex4cbaeb9

80457401 has 4 divisors (see below), whose sum is σ = 80477412. Its totient is φ = 80437392.

The previous prime is 80457389. The next prime is 80457409. The reversal of 80457401 is 10475408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18284176 + 62173225 = 4276^2 + 7885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80457401 is a prime.

It is a super-3 number, since 3×804574013 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80457409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1646 + ... + 12791.

It is an arithmetic number, because the mean of its divisors is an integer number (20119353).

Almost surely, 280457401 is an apocalyptic number.

It is an amenable number.

80457401 is a deficient number, since it is larger than the sum of its proper divisors (20011).

80457401 is a wasteful number, since it uses less digits than its factorization.

80457401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20010.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 80457401 is about 8969.8049588606. The cubic root of 80457401 is about 431.7065783688.

The spelling of 80457401 in words is "eighty million, four hundred fifty-seven thousand, four hundred one".

Divisors: 1 5573 14437 80457401