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52670740 = 2252633537
BaseRepresentation
bin1100100011101…
…1000100010100
310200002221200011
43020323010110
5101440430430
65120530004
71206460003
oct310730424
9120087604
1052670740
1127805341
1215780904
13abb1c25
146dd0c3a
15495622a
hex323b114

52670740 has 12 divisors (see below), whose sum is σ = 110608596. Its totient is φ = 21068288.

The previous prime is 52670729. The next prime is 52670749. The reversal of 52670740 is 4707625.

It can be written as a sum of positive squares in 2 ways, for example, as 5363856 + 47306884 = 2316^2 + 6878^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52670749) by changing a digit.

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, 1316749 + ... + 1316788.

It is an arithmetic number, because the mean of its divisors is an integer number (9217383).

Almost surely, 252670740 is an apocalyptic number.

It is an amenable number.

52670740 is an abundant number, since it is smaller than the sum of its proper divisors (57937856).

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

52670740 is a wasteful number, since it uses less digits than its factorization.

52670740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633546 (or 2633544 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 52670740 is about 7257.4609885276. The cubic root of 52670740 is about 374.8491007681.

The spelling of 52670740 in words is "fifty-two million, six hundred seventy thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 2633537 5267074 10534148 13167685 26335370 52670740