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55180079 = 1714512237
BaseRepresentation
bin1101001001111…
…1101100101111
310211211102211122
43102133230233
5103111230304
65250411155
71240010603
oct322375457
9124742748
1055180079
1129169679
1216590abb
13b580146
147485503
154c9e9be
hex349fb2f

55180079 has 8 divisors (see below), whose sum is σ = 58492368. Its totient is φ = 51875200.

The previous prime is 55180067. The next prime is 55180109. The reversal of 55180079 is 97008155.

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 55180079 - 24 = 55180063 is a prime.

It is a super-2 number, since 2×551800792 = 6089682236892482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55180019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23549 + ... + 25785.

It is an arithmetic number, because the mean of its divisors is an integer number (7311546).

Almost surely, 255180079 is an apocalyptic number.

55180079 is a deficient number, since it is larger than the sum of its proper divisors (3312289).

55180079 is a wasteful number, since it uses less digits than its factorization.

55180079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3705.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 55180079 is about 7428.3294891920. The cubic root of 55180079 is about 380.7098435401.

The spelling of 55180079 in words is "fifty-five million, one hundred eighty thousand, seventy-nine".

Divisors: 1 17 1451 2237 24667 38029 3245887 55180079