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52760309 = 7229107347
BaseRepresentation
bin1100100101000…
…0111011110101
310200021111112112
43021100323311
5102001312214
65122500405
71210312100
oct311207365
9120244475
1052760309
1127866668
1215804705
13ac13924
147015737
154972a3e
hex3250ef5

52760309 has 24 divisors (see below), whose sum is σ = 64268640. Its totient is φ = 43130976.

The previous prime is 52760293. The next prime is 52760327. The reversal of 52760309 is 90306725.

It is not a de Polignac number, because 52760309 - 24 = 52760293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52760009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151874 + ... + 152220.

It is an arithmetic number, because the mean of its divisors is an integer number (2677860).

Almost surely, 252760309 is an apocalyptic number.

It is an amenable number.

52760309 is a deficient number, since it is larger than the sum of its proper divisors (11508331).

52760309 is a wasteful number, since it uses less digits than its factorization.

52760309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 52760309 is about 7263.6291893240. The cubic root of 52760309 is about 375.0614631107.

The spelling of 52760309 in words is "fifty-two million, seven hundred sixty thousand, three hundred nine".

Divisors: 1 7 29 49 107 203 347 749 1421 2429 3103 5243 10063 17003 21721 37129 70441 152047 259903 493087 1076741 1819321 7537187 52760309