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52908880 = 245661361
BaseRepresentation
bin1100100111010…
…1001101010000
310200120001100011
43021311031100
5102021041010
65130004304
71211501203
oct311651520
9120501304
1052908880
1127958252
1215876694
13ac6643b
14705393a
1549a1a8a
hex3275350

52908880 has 20 divisors (see below), whose sum is σ = 123013332. Its totient is φ = 21163520.

The previous prime is 52908871. The next prime is 52908917. The reversal of 52908880 is 8880925.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17909824 + 34999056 = 4232^2 + 5916^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330601 + ... + 330760.

Almost surely, 252908880 is an apocalyptic number.

It is an amenable number.

52908880 is an abundant number, since it is smaller than the sum of its proper divisors (70104452).

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

52908880 is a wasteful number, since it uses less digits than its factorization.

52908880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661374 (or 661368 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 52908880 is about 7273.8490498497. The cubic root of 52908880 is about 375.4131860537.

The spelling of 52908880 in words is "fifty-two million, nine hundred eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 661361 1322722 2645444 3306805 5290888 6613610 10581776 13227220 26454440 52908880