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79114157 = 194163903
BaseRepresentation
bin1001011011100…
…10111110101101
312111212102012222
410231302332231
5130223123112
611503405125
71650313343
oct455627655
9174772188
1079114157
1140726701
12225b37a5
1313510115
14a715993
156e2b372
hex4b72fad

79114157 has 4 divisors (see below), whose sum is σ = 83278080. Its totient is φ = 74950236.

The previous prime is 79114129. The next prime is 79114171. The reversal of 79114157 is 75141197.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75141197 = 149350329.

It is a cyclic number.

It is not a de Polignac number, because 79114157 - 28 = 79113901 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 (79114127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2081933 + ... + 2081970.

It is an arithmetic number, because the mean of its divisors is an integer number (20819520).

Almost surely, 279114157 is an apocalyptic number.

It is an amenable number.

79114157 is a deficient number, since it is larger than the sum of its proper divisors (4163923).

79114157 is a wasteful number, since it uses less digits than its factorization.

79114157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4163922.

The product of its digits is 8820, while the sum is 35.

The square root of 79114157 is about 8894.6139320377. The cubic root of 79114157 is about 429.2906223318.

The spelling of 79114157 in words is "seventy-nine million, one hundred fourteen thousand, one hundred fifty-seven".

Divisors: 1 19 4163903 79114157