Search a number
-
+
312055051 = 71129139747
BaseRepresentation
bin10010100110011…
…001010100001011
3210202012001001111
4102212121110023
51114341230201
650544231151
710506265330
oct2246312413
9722161044
10312055051
11150168640
128860b4b7
134c85bb79
142d630987
151c5e0b51
hex1299950b

312055051 has 16 divisors (see below), whose sum is σ = 402474240. Its totient is φ = 234773280.

The previous prime is 312055039. The next prime is 312055061. The reversal of 312055051 is 150550213.

312055051 = 19752 + 19762 + ... + 20512.

It is not a de Polignac number, because 312055051 - 29 = 312054539 is a prime.

It is a super-2 number, since 2×3120550512 = 194756709709225202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312055001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67641 + ... + 72106.

It is an arithmetic number, because the mean of its divisors is an integer number (25154640).

Almost surely, 2312055051 is an apocalyptic number.

312055051 is a deficient number, since it is larger than the sum of its proper divisors (90419189).

312055051 is a wasteful number, since it uses less digits than its factorization.

312055051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139794.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 312055051 is about 17665.0799884971. The cubic root of 312055051 is about 678.2821771930.

The spelling of 312055051 in words is "three hundred twelve million, fifty-five thousand, fifty-one".

Divisors: 1 7 11 29 77 203 319 2233 139747 978229 1537217 4052663 10760519 28368641 44579293 312055051