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52054040 = 23510911939
BaseRepresentation
bin1100011010010…
…0100000011000
310121221121201102
43012210200120
5101311212130
65055410532
71201311023
oct306444030
9117847642
1052054040
1127423a75
1215523a48
13aa2730c
146cb01ba
154883645
hex31a4818

52054040 has 32 divisors (see below), whose sum is σ = 118206000. Its totient is φ = 20628864.

The previous prime is 52054039. The next prime is 52054049. The reversal of 52054040 is 4045025.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52054049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1610 + ... + 10329.

Almost surely, 252054040 is an apocalyptic number.

It is an amenable number.

52054040 is an abundant number, since it is smaller than the sum of its proper divisors (66151960).

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

52054040 is a wasteful number, since it uses less digits than its factorization.

52054040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12059 (or 12055 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 52054040 is about 7214.8485777596. The cubic root of 52054040 is about 373.3803689321.

Adding to 52054040 its reverse (4045025), we get a palindrome (56099065).

The spelling of 52054040 in words is "fifty-two million, fifty-four thousand, forty", and thus it is an eban number.

Divisors: 1 2 4 5 8 10 20 40 109 218 436 545 872 1090 2180 4360 11939 23878 47756 59695 95512 119390 238780 477560 1301351 2602702 5205404 6506755 10410808 13013510 26027020 52054040