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55223908 = 2213805977
BaseRepresentation
bin1101001010101…
…0011001100100
310211220122221221
43102222121210
5103114131113
65251350124
71240252435
oct322523144
9124818857
1055223908
11291995a3
12165b2344
13b59708c
14749748c
154cac98d
hex34aa664

55223908 has 6 divisors (see below), whose sum is σ = 96641846. Its totient is φ = 27611952.

The previous prime is 55223887. The next prime is 55223921. The reversal of 55223908 is 80932255.

It can be written as a sum of positive squares in only one way, i.e., 41370624 + 13853284 = 6432^2 + 3722^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6902985 + ... + 6902992.

Almost surely, 255223908 is an apocalyptic number.

It is an amenable number.

55223908 is a deficient number, since it is larger than the sum of its proper divisors (41417938).

55223908 is a wasteful number, since it uses less digits than its factorization.

55223908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13805981 (or 13805979 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 55223908 is about 7431.2790285388. The cubic root of 55223908 is about 380.8106149061.

The spelling of 55223908 in words is "fifty-five million, two hundred twenty-three thousand, nine hundred eight".

Divisors: 1 2 4 13805977 27611954 55223908