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2812996888 = 2313213715187
BaseRepresentation
bin1010011110101010…
…1110110100011000
321021001011001021221
42213222232310120
521230111400023
61143044141424
7126465036052
oct24752566430
97231131257
102812996888
111213955219
12666097874
1335aa2ac00
141c98488d2
15116e5585d
hexa7aaed18

2812996888 has 48 divisors (see below), whose sum is σ = 5753366280. Its totient is φ = 1288744704.

The previous prime is 2812996871. The next prime is 2812996951. The reversal of 2812996888 is 8886992182.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177631 + ... + 192817.

Almost surely, 22812996888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2812996888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2876683140).

2812996888 is an abundant number, since it is smaller than the sum of its proper divisors (2940369392).

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

2812996888 is a wasteful number, since it uses less digits than its factorization.

2812996888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15356 (or 15339 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 61.

The square root of 2812996888 is about 53037.6930870867. The cubic root of 2812996888 is about 1411.6371654507.

The spelling of 2812996888 in words is "two billion, eight hundred twelve million, nine hundred ninety-six thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 13 26 52 104 137 169 274 338 548 676 1096 1352 1781 3562 7124 14248 15187 23153 30374 46306 60748 92612 121496 185224 197431 394862 789724 1579448 2080619 2566603 4161238 5133206 8322476 10266412 16644952 20532824 27048047 54096094 108192188 216384376 351624611 703249222 1406498444 2812996888