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316091377 = 745155911
BaseRepresentation
bin10010110101110…
…010101111110001
3211000210002212001
4102311302233301
51121404411002
651210534001
710555506130
oct2265625761
9730702761
10316091377
11152475148
1289a37301
1350643124
142dda1917
151cb3ba87
hex12d72bf1

316091377 has 4 divisors (see below), whose sum is σ = 361247296. Its totient is φ = 270935460.

The previous prime is 316091359. The next prime is 316091383. The reversal of 316091377 is 773190613.

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: 773190613 = 1359476201.

It is a cyclic number.

It is not a de Polignac number, because 316091377 - 27 = 316091249 is a prime.

It is a super-2 number, since 2×3160913772 = 199827517227512258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316091357) 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, 22577949 + ... + 22577962.

It is an arithmetic number, because the mean of its divisors is an integer number (90311824).

Almost surely, 2316091377 is an apocalyptic number.

It is an amenable number.

316091377 is a deficient number, since it is larger than the sum of its proper divisors (45155919).

316091377 is an equidigital number, since it uses as much as digits as its factorization.

316091377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45155918.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 316091377 is about 17778.9588277829. The cubic root of 316091377 is about 681.1941078967.

The spelling of 316091377 in words is "three hundred sixteen million, ninety-one thousand, three hundred seventy-seven".

Divisors: 1 7 45155911 316091377