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2431312312 = 2311132125273
BaseRepresentation
bin1001000011101010…
…1110000110111000
320021102221110111011
42100322232012320
514434403443222
61041131243304
7114151546042
oct22072560670
96242843434
102431312312
111038459a20
1257a2a9534
132c9930050
14190c90a92
15e36adc77
hex90eae1b8

2431312312 has 32 divisors (see below), whose sum is σ = 5355690480. Its totient is φ = 1020130560.

The previous prime is 2431312249. The next prime is 2431312327. The reversal of 2431312312 is 2132131342.

It is a super-2 number, since 2×24313123122 = 11822559116965570688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 1061493 + ... + 1063780.

Almost surely, 22431312312 is an apocalyptic number.

2431312312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2431312312 is an abundant number, since it is smaller than the sum of its proper divisors (2924378168).

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

2431312312 is a wasteful number, since it uses less digits than its factorization.

2431312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125303 (or 2125299 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 2431312312 is about 49308.3391730040. The cubic root of 2431312312 is about 1344.6633969249.

Adding to 2431312312 its reverse (2132131342), we get a palindrome (4563443654).

The spelling of 2431312312 in words is "two billion, four hundred thirty-one million, three hundred twelve thousand, three hundred twelve".

Divisors: 1 2 4 8 11 13 22 26 44 52 88 104 143 286 572 1144 2125273 4250546 8501092 17002184 23378003 27628549 46756006 55257098 93512012 110514196 187024024 221028392 303914039 607828078 1215656156 2431312312