Search a number
-
+
20052490758 = 234189779769
BaseRepresentation
bin10010101011001110…
…001011101000000110
31220202111022002000220
4102223032023220012
5312031414201013
613113442245210
71306630234116
oct225316135006
956674262026
1020052490758
118560121113
123a77656806
131b77525961
14d8326b046
157c5688b23
hex4ab38ba06

20052490758 has 16 divisors (see below), whose sum is σ = 40106441520. Its totient is φ = 6683920256.

The previous prime is 20052490673. The next prime is 20052490789. The reversal of 20052490758 is 85709425002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211498 + ... + 291266.

It is an arithmetic number, because the mean of its divisors is an integer number (2506652595).

Almost surely, 220052490758 is an apocalyptic number.

20052490758 is an abundant number, since it is smaller than the sum of its proper divisors (20053950762).

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

20052490758 is a wasteful number, since it uses less digits than its factorization.

20052490758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121671.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 20052490758 in words is "twenty billion, fifty-two million, four hundred ninety thousand, seven hundred fifty-eight".

Divisors: 1 2 3 6 41897 79769 83794 125691 159538 239307 251382 478614 3342081793 6684163586 10026245379 20052490758