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52026780 = 22351366701
BaseRepresentation
bin1100011001110…
…1110110011100
310121220020022210
43012131312130
5101304324110
65055040420
71201135401
oct306356634
9117806283
1052026780
1127405543
1215510110
13aa17aa0
146ca42a8
15487a520
hex319dd9c

52026780 has 48 divisors (see below), whose sum is σ = 156883104. Its totient is φ = 12806400.

The previous prime is 52026763. The next prime is 52026833. The reversal of 52026780 is 8762025.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32571 + ... + 34130.

It is an arithmetic number, because the mean of its divisors is an integer number (3268398).

Almost surely, 252026780 is an apocalyptic number.

It is an amenable number.

52026780 is an abundant number, since it is smaller than the sum of its proper divisors (104856324).

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

52026780 is a wasteful number, since it uses less digits than its factorization.

52026780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66726 (or 66724 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 52026780 is about 7212.9591708258. The cubic root of 52026780 is about 373.3151794602.

The spelling of 52026780 in words is "fifty-two million, twenty-six thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 66701 133402 200103 266804 333505 400206 667010 800412 867113 1000515 1334020 1734226 2001030 2601339 3468452 4002060 4335565 5202678 8671130 10405356 13006695 17342260 26013390 52026780