Search a number
-
+
52037140 = 2252601857
BaseRepresentation
bin1100011010000…
…0011000010100
310121220202112111
43012200120110
5101310142030
65055200404
71201210531
oct306403024
9117822474
1052037140
1127412301
1215516104
13aa1c70c
146ca7d88
15487d62a
hex31a0614

52037140 has 12 divisors (see below), whose sum is σ = 109278036. Its totient is φ = 20814848.

The previous prime is 52037129. The next prime is 52037147. The reversal of 52037140 is 4173025.

It can be written as a sum of positive squares in 2 ways, for example, as 24621444 + 27415696 = 4962^2 + 5236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52037147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300909 + ... + 1300948.

It is an arithmetic number, because the mean of its divisors is an integer number (9106503).

Almost surely, 252037140 is an apocalyptic number.

It is an amenable number.

52037140 is an abundant number, since it is smaller than the sum of its proper divisors (57240896).

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

52037140 is a wasteful number, since it uses less digits than its factorization.

52037140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601866 (or 2601864 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 52037140 is about 7213.6772869321. The cubic root of 52037140 is about 373.3399570112.

The spelling of 52037140 in words is "fifty-two million, thirty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2601857 5203714 10407428 13009285 26018570 52037140