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312300051 = 3782917939
BaseRepresentation
bin10010100111010…
…101001000010011
3210202122111010120
4102213111020103
51114422100201
650553401323
710511335530
oct2247251023
9722574116
10312300051
11150315718
1288709243
134c91653b
142d695d87
151c63d536
hex129d5213

312300051 has 16 divisors (see below), whose sum is σ = 476486400. Its totient is φ = 178231968.

The previous prime is 312300011. The next prime is 312300061. The reversal of 312300051 is 150003213.

It is a happy number.

It is not a de Polignac number, because 312300051 - 26 = 312299987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312300051.

It is not an unprimeable number, because it can be changed into a prime (312300011) 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, 8440 + ... + 26378.

It is an arithmetic number, because the mean of its divisors is an integer number (29780400).

Almost surely, 2312300051 is an apocalyptic number.

312300051 is a deficient number, since it is larger than the sum of its proper divisors (164186349).

312300051 is a wasteful number, since it uses less digits than its factorization.

312300051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18778.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 312300051 is about 17672.0132129874. The cubic root of 312300051 is about 678.4596412460.

Adding to 312300051 its reverse (150003213), we get a palindrome (462303264).

The spelling of 312300051 in words is "three hundred twelve million, three hundred thousand, fifty-one".

Divisors: 1 3 7 21 829 2487 5803 17409 17939 53817 125573 376719 14871431 44614293 104100017 312300051