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52182040 = 2351304551
BaseRepresentation
bin1100011100001…
…1110000011000
310122012010022011
43013003300120
5101324311130
65102235304
71202353141
oct307036030
9118163264
1052182040
1127501159
1215585b34
13aa70661
146d04ac8
1548ab52a
hex31c3c18

52182040 has 16 divisors (see below), whose sum is σ = 117409680. Its totient is φ = 20872800.

The previous prime is 52182029. The next prime is 52182059. The reversal of 52182040 is 4028125.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652236 + ... + 652315.

It is an arithmetic number, because the mean of its divisors is an integer number (7338105).

Almost surely, 252182040 is an apocalyptic number.

It is an amenable number.

52182040 is an abundant number, since it is smaller than the sum of its proper divisors (65227640).

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

52182040 is a wasteful number, since it uses less digits than its factorization.

52182040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304562 (or 1304558 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 52182040 is about 7223.7137263322. The cubic root of 52182040 is about 373.6861637487.

The spelling of 52182040 in words is "fifty-two million, one hundred eighty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 1304551 2609102 5218204 6522755 10436408 13045510 26091020 52182040