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312112041 = 3104037347
BaseRepresentation
bin10010100110100…
…111001110101001
3210202021221020020
4102212213032221
51114400041131
650545351053
710506623433
oct2246471651
9722257206
10312112041
111501a743a
1288638489
134c87baa7
142d647653
151c602996
hex129a73a9

312112041 has 4 divisors (see below), whose sum is σ = 416149392. Its totient is φ = 208074692.

The previous prime is 312112033. The next prime is 312112043. The reversal of 312112041 is 140211213.

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: 140211213 = 346737071.

It is a cyclic number.

It is not a de Polignac number, because 312112041 - 23 = 312112033 is a prime.

It is a super-2 number, since 2×3121120412 = 194827852274371362, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312112041.

It is not an unprimeable number, because it can be changed into a prime (312112043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52018671 + ... + 52018676.

It is an arithmetic number, because the mean of its divisors is an integer number (104037348).

Almost surely, 2312112041 is an apocalyptic number.

It is an amenable number.

312112041 is a deficient number, since it is larger than the sum of its proper divisors (104037351).

312112041 is a wasteful number, since it uses less digits than its factorization.

312112041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104037350.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 312112041 is about 17666.6929842571. The cubic root of 312112041 is about 678.3234657928.

Adding to 312112041 its reverse (140211213), we get a palindrome (452323254).

The spelling of 312112041 in words is "three hundred twelve million, one hundred twelve thousand, forty-one".

Divisors: 1 3 104037347 312112041