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52880478 = 23710911551
BaseRepresentation
bin1100100110111…
…0010001011110
310200111121101020
43021232101132
5102014133403
65125225010
71211322330
oct311562136
9120447336
1052880478
1127938982
1215862166
13ac56531
147047450
154998453
hex326e45e

52880478 has 32 divisors (see below), whose sum is σ = 121989120. Its totient is φ = 14968800.

The previous prime is 52880453. The next prime is 52880479. The reversal of 52880478 is 87408825.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52880479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1198 + ... + 10353.

It is an arithmetic number, because the mean of its divisors is an integer number (3812160).

Almost surely, 252880478 is an apocalyptic number.

52880478 is an abundant number, since it is smaller than the sum of its proper divisors (69108642).

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

52880478 is a wasteful number, since it uses less digits than its factorization.

52880478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11672.

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 52880478 is about 7271.8964514080. The cubic root of 52880478 is about 375.3459988834.

The spelling of 52880478 in words is "fifty-two million, eight hundred eighty thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 7 14 21 42 109 218 327 654 763 1526 2289 4578 11551 23102 34653 69306 80857 161714 242571 485142 1259059 2518118 3777177 7554354 8813413 17626826 26440239 52880478