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312210130213 = 3110071294523
BaseRepresentation
bin1001000101100010010…
…11001000010100100101
31002211212110102220120001
410202301023020110211
520103401243131323
6355232150341301
731361600214532
oct4426113102445
91084773386501
10312210130213
1111045352a903
125061265a831
1323597686627
141117aa1bd89
1581c45da3ad
hex48b12c8525

312210130213 has 4 divisors (see below), whose sum is σ = 322281424768. Its totient is φ = 302138835660.

The previous prime is 312210130187. The next prime is 312210130217. The reversal of 312210130213 is 312031012213.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-312210130213 is a prime.

It is a super-3 number, since 3×3122101302133 (a number of 35 digits) contains 333 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 (312210130217) 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, 5035647231 + ... + 5035647292.

It is an arithmetic number, because the mean of its divisors is an integer number (80570356192).

Almost surely, 2312210130213 is an apocalyptic number.

It is an amenable number.

312210130213 is a deficient number, since it is larger than the sum of its proper divisors (10071294555).

312210130213 is a wasteful number, since it uses less digits than its factorization.

312210130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10071294554.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312210130213 its reverse (312031012213), we get a palindrome (624241142426).

The spelling of 312210130213 in words is "three hundred twelve billion, two hundred ten million, one hundred thirty thousand, two hundred thirteen".

Divisors: 1 31 10071294523 312210130213