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52869557 = 1318122469
BaseRepresentation
bin1100100110101…
…1100110110101
310200111001101202
43021223212311
5102013311212
65125102245
71211245436
oct311534665
9120431352
1052869557
1127930754
1215857985
13ac51580
14704348d
1549950c2
hex326b9b5

52869557 has 8 divisors (see below), whose sum is σ = 57253560. Its totient is φ = 48530880.

The previous prime is 52869527. The next prime is 52869563. The reversal of 52869557 is 75596825.

It can be written as a sum of positive squares in 4 ways, for example, as 2116 + 52867441 = 46^2 + 7271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52869557 - 210 = 52868533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52869527) 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, 8882 + ... + 13587.

It is an arithmetic number, because the mean of its divisors is an integer number (7156695).

Almost surely, 252869557 is an apocalyptic number.

It is an amenable number.

52869557 is a deficient number, since it is larger than the sum of its proper divisors (4384003).

52869557 is a wasteful number, since it uses less digits than its factorization.

52869557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22663.

The product of its digits is 756000, while the sum is 47.

The square root of 52869557 is about 7271.1455081026. The cubic root of 52869557 is about 375.3201579932.

The spelling of 52869557 in words is "fifty-two million, eight hundred sixty-nine thousand, five hundred fifty-seven".

Divisors: 1 13 181 2353 22469 292097 4066889 52869557