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80358457 is a prime number
BaseRepresentation
bin1001100101000…
…10110000111001
312121012122002011
410302202300321
5131032432312
611550205521
71664015134
oct462426071
9177178064
1080358457
11413a6553
1222ab38a1
13138575aa
14a95b21b
1570c4da7
hex4ca2c39

80358457 has 2 divisors, whose sum is σ = 80358458. Its totient is φ = 80358456.

The previous prime is 80358451. The next prime is 80358469. The reversal of 80358457 is 75485308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74287161 + 6071296 = 8619^2 + 2464^2 .

It is a cyclic number.

It is not a de Polignac number, because 80358457 - 215 = 80325689 is a prime.

It is a super-2 number, since 2×803584572 = 12914963222841698, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80358451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40179228 + 40179229.

It is an arithmetic number, because the mean of its divisors is an integer number (40179229).

Almost surely, 280358457 is an apocalyptic number.

It is an amenable number.

80358457 is a deficient number, since it is larger than the sum of its proper divisors (1).

80358457 is an equidigital number, since it uses as much as digits as its factorization.

80358457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 80358457 is about 8964.2878690948. The cubic root of 80358457 is about 431.5295393523.

The spelling of 80358457 in words is "eighty million, three hundred fifty-eight thousand, four hundred fifty-seven".