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312013033213 = 7199372235707
BaseRepresentation
bin1001000101001010110…
…11010000111011111101
31002211100201120100022011
410202211123100323331
520103000314030323
6355200430051221
731353655010650
oct4424533207375
91084321510264
10312013033213
1111036224aa22
1250578649b11
13235658a779b
141115c793897
1581b215620d
hex48a56d0efd

312013033213 has 8 divisors (see below), whose sum is σ = 356604368832. Its totient is φ = 267426208896.

The previous prime is 312013033207. The next prime is 312013033217. The reversal of 312013033213 is 312330310213.

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

It is not a de Polignac number, because 312013033213 - 217 = 312012902141 is a prime.

It is a super-2 number, since 2×3120130332132 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312013033217) 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, 978295 + ... + 1257412.

It is an arithmetic number, because the mean of its divisors is an integer number (44575546104).

Almost surely, 2312013033213 is an apocalyptic number.

It is an amenable number.

312013033213 is a deficient number, since it is larger than the sum of its proper divisors (44591335619).

312013033213 is a wasteful number, since it uses less digits than its factorization.

312013033213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255651.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 312013033213 its reverse (312330310213), we get a palindrome (624343343426).

The spelling of 312013033213 in words is "three hundred twelve billion, thirteen million, thirty-three thousand, two hundred thirteen".

Divisors: 1 7 19937 139559 2235707 15649949 44573290459 312013033213