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312013101 = 3234521929
BaseRepresentation
bin10010100110001…
…111000100101101
3210202002220111210
4102212033010231
51114333404401
650543305033
710506032121
oct2246170455
9722086453
10312013101
1115013a074
12885ab179
134c845a4a
142d61d581
151c5d34d6
hex1298f12d

312013101 has 8 divisors (see below), whose sum is σ = 434105280. Its totient is φ = 198964832.

The previous prime is 312013099. The next prime is 312013103. The reversal of 312013101 is 101310213.

It is an interprime number because it is at equal distance from previous prime (312013099) and next prime (312013103).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312013101 - 21 = 312013099 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312013103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2260896 + ... + 2261033.

It is an arithmetic number, because the mean of its divisors is an integer number (54263160).

Almost surely, 2312013101 is an apocalyptic number.

It is an amenable number.

312013101 is a deficient number, since it is larger than the sum of its proper divisors (122092179).

312013101 is a wasteful number, since it uses less digits than its factorization.

312013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521955.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 312013101 is about 17663.8925777984. The cubic root of 312013101 is about 678.2517816881.

Adding to 312013101 its reverse (101310213), we get a palindrome (413323314).

The spelling of 312013101 in words is "three hundred twelve million, thirteen thousand, one hundred one".

Divisors: 1 3 23 69 4521929 13565787 104004367 312013101