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10311212230 = 2511267127189
BaseRepresentation
bin10011001101001100…
…01001110011000110
3222121121100212001021
421212212021303012
5132104132242410
64423101021354
7513343600144
oct114646116306
928547325037
1010311212230
114411457400
121bb925485a
13c84312817
146db614594
15405383eda
hex266989cc6

10311212230 has 48 divisors (see below), whose sum is σ = 20705514480. Its totient is φ = 3693539520.

The previous prime is 10311212203. The next prime is 10311212299. The reversal of 10311212230 is 3221211301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17476 + ... + 144664.

It is an arithmetic number, because the mean of its divisors is an integer number (431364885).

Almost surely, 210311212230 is an apocalyptic number.

10311212230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10311212230 is an abundant number, since it is smaller than the sum of its proper divisors (10394302250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10311212230 is a wasteful number, since it uses less digits than its factorization.

10311212230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127285 (or 127274 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10311212230 its reverse (3221211301), we get a palindrome (13532423531).

The spelling of 10311212230 in words is "ten billion, three hundred eleven million, two hundred twelve thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 67 110 121 134 242 335 605 670 737 1210 1474 3685 7370 8107 16214 40535 81070 127189 254378 635945 1271890 1399079 2798158 6995395 8521663 13990790 15389869 17043326 30779738 42608315 76949345 85216630 93738293 153898690 187476586 468691465 937382930 1031121223 2062242446 5155606115 10311212230