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312010112212 = 22509810118917
BaseRepresentation
bin1001000101001010100…
…00000111110011010100
31002211100112001221102221
410202211100013303110
520102444042042322
6355200243312124
731353621123631
oct4424520076324
91084315057387
10312010112212
11110360635377
125057767b644
13235650c4096
141115c233188
1581b1c7a9c7
hex48a5407cd4

312010112212 has 24 divisors (see below), whose sum is σ = 547186880520. Its totient is φ = 155671113600.

The previous prime is 312010112209. The next prime is 312010112231. The reversal of 312010112212 is 212211010213.

It can be written as a sum of positive squares in 4 ways, for example, as 250036001296 + 61974110916 = 500036^2 + 248946^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16484178 + ... + 16503094.

It is an arithmetic number, because the mean of its divisors is an integer number (22799453355).

Almost surely, 2312010112212 is an apocalyptic number.

It is an amenable number.

312010112212 is a deficient number, since it is larger than the sum of its proper divisors (235176768308).

312010112212 is a wasteful number, since it uses less digits than its factorization.

312010112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27531 (or 27529 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 312010112212 its reverse (212211010213), we get a palindrome (524221122425).

It can be divided in two parts, 3120101 and 12212, that added together give a palindrome (3132313).

The spelling of 312010112212 in words is "three hundred twelve billion, ten million, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 509 1018 2036 8101 16202 18917 32404 37834 75668 4123409 8246818 9628753 16493636 19257506 38515012 153246617 306493234 612986468 78002528053 156005056106 312010112212