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2164751144 = 23439616387
BaseRepresentation
bin1000000100000111…
…0111101100101000
312120212100202022022
42001001313230220
513413134014034
6554450044012
7104434036553
oct20101675450
95525322268
102164751144
11a10a44636
12504b79608
1328663c54a
1416770369a
15ca0a7b2e
hex81077b28

2164751144 has 16 divisors (see below), whose sum is σ = 4068160800. Its totient is φ = 1079908272.

The previous prime is 2164751129. The next prime is 2164751153. The reversal of 2164751144 is 4411574612.

It is a super-2 number, since 2×21647511442 = 9372295030898617472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304682 + ... + 311705.

It is an arithmetic number, because the mean of its divisors is an integer number (254260050).

Almost surely, 22164751144 is an apocalyptic number.

It is an amenable number.

2164751144 is a deficient number, since it is larger than the sum of its proper divisors (1903409656).

2164751144 is a wasteful number, since it uses less digits than its factorization.

2164751144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616832 (or 616828 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 2164751144 is about 46526.8862487057. The cubic root of 2164751144 is about 1293.6079004580.

The spelling of 2164751144 in words is "two billion, one hundred sixty-four million, seven hundred fifty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 439 878 1756 3512 616387 1232774 2465548 4931096 270593893 541187786 1082375572 2164751144