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1310233212 = 223312131789
BaseRepresentation
bin100111000011000…
…1001001001111100
310101022102202002000
41032012021021330
510140404430322
6334002502300
744316540621
oct11606111174
93338382060
101310233212
11612657672
12306964990
1317b5aba32
14c6026348
157a0623ac
hex4e18927c

1310233212 has 24 divisors (see below), whose sum is σ = 3396901200. Its totient is φ = 436744368.

The previous prime is 1310233207. The next prime is 1310233229. The reversal of 1310233212 is 2123320131.

It is a super-2 number, since 2×13102332122 = 3433422139655673888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 6065787 + ... + 6066002.

It is an arithmetic number, because the mean of its divisors is an integer number (141537550).

Almost surely, 21310233212 is an apocalyptic number.

1310233212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1310233212 is an abundant number, since it is smaller than the sum of its proper divisors (2086667988).

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

1310233212 is a wasteful number, since it uses less digits than its factorization.

1310233212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12131802 (or 12131794 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1310233212 is about 36197.1436994689. The cubic root of 1310233212 is about 1094.2491080150.

Adding to 1310233212 its reverse (2123320131), we get a palindrome (3433553343).

The spelling of 1310233212 in words is "one billion, three hundred ten million, two hundred thirty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 12131789 24263578 36395367 48527156 72790734 109186101 145581468 218372202 327558303 436744404 655116606 1310233212