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2140387570 = 25214038757
BaseRepresentation
bin111111110010011…
…1011100011110010
312112011111221202201
41333210323203302
513340414400240
6552215533414
7104016664666
oct17744734362
95464457681
102140387570
119a9213952
124b898a26a
1328158bc29
141643a08a6
15c7d93d9a
hex7f93b8f2

2140387570 has 8 divisors (see below), whose sum is σ = 3852697644. Its totient is φ = 856155024.

The previous prime is 2140387559. The next prime is 2140387583. The reversal of 2140387570 is 757830412.

It can be written as a sum of positive squares in 2 ways, for example, as 2037709881 + 102677689 = 45141^2 + 10133^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×21403875703 (a number of 29 digits) contains 333 as substring.

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, 107019369 + ... + 107019388.

Almost surely, 22140387570 is an apocalyptic number.

2140387570 is a deficient number, since it is larger than the sum of its proper divisors (1712310074).

2140387570 is a wasteful number, since it uses less digits than its factorization.

2140387570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214038764.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 2140387570 is about 46264.3228633036. The cubic root of 2140387570 is about 1288.7365330905.

The spelling of 2140387570 in words is "two billion, one hundred forty million, three hundred eighty-seven thousand, five hundred seventy".

Divisors: 1 2 5 10 214038757 428077514 1070193785 2140387570