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2912443140 = 2235160130319
BaseRepresentation
bin1010110110011000…
…0101101100000100
321111222021102220110
42231212011230010
521431041140030
61200555433020
7132113233605
oct25546055404
97458242813
102912443140
111264aa8702
12693455770
13375509649
141d8b33dac
15120a4b1b0
hexad985b04

2912443140 has 48 divisors (see below), whose sum is σ = 8160203520. Its totient is φ = 776140800.

The previous prime is 2912443097. The next prime is 2912443181. The reversal of 2912443140 is 413442192.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2912443098 and 2912443107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80901 + ... + 111219.

It is an arithmetic number, because the mean of its divisors is an integer number (170004240).

Almost surely, 22912443140 is an apocalyptic number.

2912443140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2912443140 is an abundant number, since it is smaller than the sum of its proper divisors (5247760380).

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

2912443140 is a wasteful number, since it uses less digits than its factorization.

2912443140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31932 (or 31930 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2912443140 is about 53967.0560620088. The cubic root of 2912443140 is about 1428.0798294316.

The spelling of 2912443140 in words is "two billion, nine hundred twelve million, four hundred forty-three thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1601 3202 4803 6404 8005 9606 16010 19212 24015 30319 32020 48030 60638 90957 96060 121276 151595 181914 303190 363828 454785 606380 909570 1819140 48540719 97081438 145622157 194162876 242703595 291244314 485407190 582488628 728110785 970814380 1456221570 2912443140