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2987520040 = 23574688001
BaseRepresentation
bin1011001000010001…
…1111000000101000
321201012112202001101
42302010133000220
522104301120130
61212240531144
7134014333651
oct26204370050
97635482041
102987520040
1112a341702a
126b4620ab4
13387c34c4b
14204ab8528
1512742b1ca
hexb211f028

2987520040 has 16 divisors (see below), whose sum is σ = 6721920180. Its totient is φ = 1195008000.

The previous prime is 2987520013. The next prime is 2987520083. The reversal of 2987520040 is 400257892.

It can be written as a sum of positive squares in 2 ways, for example, as 2965673764 + 21846276 = 54458^2 + 4674^2 .

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, 37343961 + ... + 37344040.

Almost surely, 22987520040 is an apocalyptic number.

2987520040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2987520040 is an abundant number, since it is smaller than the sum of its proper divisors (3734400140).

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

2987520040 is a wasteful number, since it uses less digits than its factorization.

2987520040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74688012 (or 74688008 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 2987520040 is about 54658.2110940342. The cubic root of 2987520040 is about 1440.2468776825.

The spelling of 2987520040 in words is "two billion, nine hundred eighty-seven million, five hundred twenty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 74688001 149376002 298752004 373440005 597504008 746880010 1493760020 2987520040