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315340776401 = 726435526049
BaseRepresentation
bin1001001011010111100…
…01100110001111010001
31010010221122022012202212
410211223301212033101
520131304214321101
6400510543121505
731532303242100
oct4455361461721
91103848265685
10315340776401
1111180a713702
1251146ba3295
13239761517b1
1411396712037
1583093891bb
hex496bc663d1

315340776401 has 6 divisors (see below), whose sum is σ = 366824984850. Its totient is φ = 270292094016.

The previous prime is 315340776349. The next prime is 315340776403. The reversal of 315340776401 is 104677043513.

It can be written as a sum of positive squares in only one way, i.e., 311877571600 + 3463204801 = 558460^2 + 58849^2 .

It is not a de Polignac number, because 315340776401 - 218 = 315340514257 is a prime.

It is a super-2 number, since 2×3153407764012 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315340776403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3217762976 + ... + 3217763073.

It is an arithmetic number, because the mean of its divisors is an integer number (61137497475).

Almost surely, 2315340776401 is an apocalyptic number.

It is an amenable number.

315340776401 is a deficient number, since it is larger than the sum of its proper divisors (51484208449).

315340776401 is an equidigital number, since it uses as much as digits as its factorization.

315340776401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435526063 (or 6435526056 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 315340776401 in words is "three hundred fifteen billion, three hundred forty million, seven hundred seventy-six thousand, four hundred one".

Divisors: 1 7 49 6435526049 45048682343 315340776401