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52507829 = 1124091061
BaseRepresentation
bin1100100001001…
…1010010110101
310122210200012102
43020103102311
5101420222304
65113231445
71205211023
oct310232265
9118720172
1052507829
1127703a00
1215702585
13ab55a2a
146d8b713
154922d1e
hex32134b5

52507829 has 12 divisors (see below), whose sum is σ = 57910860. Its totient is φ = 47572800.

The previous prime is 52507801. The next prime is 52507841. The reversal of 52507829 is 92870525.

It can be written as a sum of positive squares in 2 ways, for example, as 42120100 + 10387729 = 6490^2 + 3223^2 .

It is not a de Polignac number, because 52507829 - 28 = 52507573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52507792 and 52507801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52507879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48959 + ... + 50019.

It is an arithmetic number, because the mean of its divisors is an integer number (4825905).

Almost surely, 252507829 is an apocalyptic number.

It is an amenable number.

52507829 is a deficient number, since it is larger than the sum of its proper divisors (5403031).

52507829 is a wasteful number, since it uses less digits than its factorization.

52507829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492 (or 1481 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 52507829 is about 7246.2286052815. The cubic root of 52507829 is about 374.4622312555.

The spelling of 52507829 in words is "fifty-two million, five hundred seven thousand, eight hundred twenty-nine".

Divisors: 1 11 121 409 1061 4499 11671 49489 128381 433949 4773439 52507829