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2991682040 = 23574792051
BaseRepresentation
bin1011001001010001…
…0111000111111000
321201111101012020112
42302110113013320
522111332311130
61212510043452
7134064610034
oct26224270770
97644335215
102991682040
1112a57a9aa6
126b5aa9588
13388a61479
1420547d1c4
1512799e495
hexb25171f8

2991682040 has 16 divisors (see below), whose sum is σ = 6731284680. Its totient is φ = 1196672800.

The previous prime is 2991682033. The next prime is 2991682081. The reversal of 2991682040 is 402861992.

2991682040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×29916820402 = 17900322856917123200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37395986 + ... + 37396065.

Almost surely, 22991682040 is an apocalyptic number.

2991682040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2991682040 is an abundant number, since it is smaller than the sum of its proper divisors (3739602640).

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

2991682040 is a wasteful number, since it uses less digits than its factorization.

2991682040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74792062 (or 74792058 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 2991682040 is about 54696.2708052386. The cubic root of 2991682040 is about 1440.9153837748.

The spelling of 2991682040 in words is "two billion, nine hundred ninety-one million, six hundred eighty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 74792051 149584102 299168204 373960255 598336408 747920510 1495841020 2991682040