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2981954144 = 25137168159
BaseRepresentation
bin1011000110111101…
…0000001001100000
321200211001222002002
42301233100021200
522101340013034
61211521343132
7133616122601
oct26157201140
97624058062
102981954144
1112a0265314
126b2797aa8
13386a36710
14204069da8
15126bcbe7e
hexb1bd0260

2981954144 has 24 divisors (see below), whose sum is σ = 6322317120. Its totient is φ = 1376286336.

The previous prime is 2981954137. The next prime is 2981954177. The reversal of 2981954144 is 4414591892.

It is a congruent number.

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, 3583664 + ... + 3584495.

It is an arithmetic number, because the mean of its divisors is an integer number (263429880).

Almost surely, 22981954144 is an apocalyptic number.

It is an amenable number.

2981954144 is an abundant number, since it is smaller than the sum of its proper divisors (3340362976).

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

2981954144 is a wasteful number, since it uses less digits than its factorization.

2981954144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7168182 (or 7168174 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 2981954144 is about 54607.2718966989. The cubic root of 2981954144 is about 1439.3519048602.

The spelling of 2981954144 in words is "two billion, nine hundred eighty-one million, nine hundred fifty-four thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 7168159 14336318 28672636 57345272 93186067 114690544 186372134 229381088 372744268 745488536 1490977072 2981954144