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55090107278 = 272737888657
BaseRepresentation
bin110011010011101000…
…000101001110001110
312021012022202102010122
4303103220011032032
51400311031413103
641150312104542
73660120120443
oct632350051616
9167168672118
1055090107278
11213aaa24a88
12a815695152
13526c48a31b
1429487699ca
151676699b38
hexcd3a0538e

55090107278 has 8 divisors (see below), whose sum is σ = 82748829072. Its totient is φ = 27507164256.

The previous prime is 55090107263. The next prime is 55090107287. The reversal of 55090107278 is 87270109055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18942875 + ... + 18945782.

It is an arithmetic number, because the mean of its divisors is an integer number (10343603634).

Almost surely, 255090107278 is an apocalyptic number.

55090107278 is a deficient number, since it is larger than the sum of its proper divisors (27658721794).

55090107278 is a wasteful number, since it uses less digits than its factorization.

55090107278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37889386.

The product of its (nonzero) digits is 176400, while the sum is 44.

The spelling of 55090107278 in words is "fifty-five billion, ninety million, one hundred seven thousand, two hundred seventy-eight".

Divisors: 1 2 727 1454 37888657 75777314 27545053639 55090107278