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55382080 = 2651313313
BaseRepresentation
bin1101001101000…
…1000001000000
310212012200221011
43103101001000
5103134211310
65255010304
71241511535
oct323210100
9125180834
1055382080
1129297416
1216669994
13b621080
1474d8d8c
154cde78a
hex34d1040

55382080 has 56 divisors (see below), whose sum is σ = 142033752. Its totient is φ = 20447232.

The previous prime is 55382077. The next prime is 55382087. The reversal of 55382080 is 8028355.

It can be written as a sum of positive squares in 4 ways, for example, as 147456 + 55234624 = 384^2 + 7432^2 .

It is not an unprimeable number, because it can be changed into a prime (55382087) 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, 2497 + ... + 10816.

It is an arithmetic number, because the mean of its divisors is an integer number (2536317).

Almost surely, 255382080 is an apocalyptic number.

It is an amenable number.

55382080 is an abundant number, since it is smaller than the sum of its proper divisors (86651672).

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

55382080 is a wasteful number, since it uses less digits than its factorization.

55382080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13343 (or 13333 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 55382080 is about 7441.9137323675. The cubic root of 55382080 is about 381.1738402023.

The spelling of 55382080 in words is "fifty-five million, three hundred eighty-two thousand, eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 130 160 208 260 320 416 520 832 1040 2080 4160 13313 26626 53252 66565 106504 133130 173069 213008 266260 346138 426016 532520 692276 852032 865345 1065040 1384552 1730690 2130080 2769104 3461380 4260160 5538208 6922760 11076416 13845520 27691040 55382080