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53842990 = 2517593061
BaseRepresentation
bin1100110101100…
…1010000101110
310202022111200211
43031121100232
5102240433430
65202013034
71222441435
oct315312056
9122274624
1053842990
1128436043
121604717a
13b202676
14721811c
154ad872a
hex335942e

53842990 has 16 divisors (see below), whose sum is σ = 97004160. Its totient is φ = 21517920.

The previous prime is 53842969. The next prime is 53842991. The reversal of 53842990 is 9924835.

It is a happy number.

53842990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53842991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16060 + ... + 19120.

It is an arithmetic number, because the mean of its divisors is an integer number (6062760).

Almost surely, 253842990 is an apocalyptic number.

53842990 is a deficient number, since it is larger than the sum of its proper divisors (43161170).

53842990 is a wasteful number, since it uses less digits than its factorization.

53842990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4827.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 53842990 is about 7337.7782741100. The cubic root of 53842990 is about 377.6096256329.

The spelling of 53842990 in words is "fifty-three million, eight hundred forty-two thousand, nine hundred ninety".

Divisors: 1 2 5 10 1759 3061 3518 6122 8795 15305 17590 30610 5384299 10768598 26921495 53842990