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80495157 = 326831719
BaseRepresentation
bin1001100110001…
…00001000110101
312121110120121010
410303010020311
5131101321112
611553142433
71665124521
oct463041065
9177416533
1080495157
114148a226
1222b5aa19
13138a4892
14a994d81
15710063c
hex4cc4235

80495157 has 4 divisors (see below), whose sum is σ = 107326880. Its totient is φ = 53663436.

The previous prime is 80495131. The next prime is 80495171. The reversal of 80495157 is 75159408.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 80495157 - 27 = 80495029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80495257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13415857 + ... + 13415862.

It is an arithmetic number, because the mean of its divisors is an integer number (26831720).

Almost surely, 280495157 is an apocalyptic number.

It is an amenable number.

80495157 is a deficient number, since it is larger than the sum of its proper divisors (26831723).

80495157 is a wasteful number, since it uses less digits than its factorization.

80495157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26831722.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 80495157 is about 8971.9093285655. The cubic root of 80495157 is about 431.7740963532.

The spelling of 80495157 in words is "eighty million, four hundred ninety-five thousand, one hundred fifty-seven".

Divisors: 1 3 26831719 80495157