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2031380862 = 23748366211
BaseRepresentation
bin111100100010100…
…0110100101111110
312020120101211200020
41321011012211332
513130013141422
6533323313010
7101224311120
oct17105064576
95216354606
102031380862
11952730565
1248837b766
13264b13a14
14153b07210
15bd51095c
hex7914697e

2031380862 has 16 divisors (see below), whose sum is σ = 4643156352. Its totient is φ = 580394520.

The previous prime is 2031380851. The next prime is 2031380863. The reversal of 2031380862 is 2680831302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031380863) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24183064 + ... + 24183147.

It is an arithmetic number, because the mean of its divisors is an integer number (290197272).

Almost surely, 22031380862 is an apocalyptic number.

2031380862 is an abundant number, since it is smaller than the sum of its proper divisors (2611775490).

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

2031380862 is a wasteful number, since it uses less digits than its factorization.

2031380862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48366223.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2031380862 is about 45070.8427034596. The cubic root of 2031380862 is about 1266.4764509227.

The spelling of 2031380862 in words is "two billion, thirty-one million, three hundred eighty thousand, eight hundred sixty-two".

Divisors: 1 2 3 6 7 14 21 42 48366211 96732422 145098633 290197266 338563477 677126954 1015690431 2031380862