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2981370072 = 233313396881
BaseRepresentation
bin1011000110110100…
…0001100011011000
321200202222021212210
42301231001203120
522101212320242
61211501035120
7133611141012
oct26155014330
97622867783
102981370072
11129a9a650a
126b2555aa0
13386890905
14203d571b2
15126b13d9c
hexb1b418d8

2981370072 has 32 divisors (see below), whose sum is σ = 7477256880. Its totient is φ = 990612480.

The previous prime is 2981370023. The next prime is 2981370083. The reversal of 2981370072 is 2700731892.

It is a self number, because there is not a number n which added to its sum of digits gives 2981370072.

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, 190929 + ... + 205952.

Almost surely, 22981370072 is an apocalyptic number.

It is an amenable number.

2981370072 is an abundant number, since it is smaller than the sum of its proper divisors (4495886808).

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

2981370072 is a wasteful number, since it uses less digits than its factorization.

2981370072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397203 (or 397199 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 2981370072 is about 54601.9237023752. The cubic root of 2981370072 is about 1439.2579239784.

The spelling of 2981370072 in words is "two billion, nine hundred eighty-one million, three hundred seventy thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 313 626 939 1252 1878 2504 3756 7512 396881 793762 1190643 1587524 2381286 3175048 4762572 9525144 124223753 248447506 372671259 496895012 745342518 993790024 1490685036 2981370072