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55272099 = 3139132547
BaseRepresentation
bin1101001011011…
…0001010100011
310212000010001210
43102312022203
5103122201344
65252401203
71240543101
oct322661243
9125003053
1055272099
1129221823
1216616203
13b5b2cac
1474aac71
154cbbdb9
hex34b62a3

55272099 has 8 divisors (see below), whose sum is σ = 74226880. Its totient is φ = 36582696.

The previous prime is 55272097. The next prime is 55272103. The reversal of 55272099 is 99027255.

55272099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55272099 - 21 = 55272097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55272097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65857 + ... + 66690.

It is an arithmetic number, because the mean of its divisors is an integer number (9278360).

Almost surely, 255272099 is an apocalyptic number.

55272099 is a deficient number, since it is larger than the sum of its proper divisors (18954781).

55272099 is a wasteful number, since it uses less digits than its factorization.

55272099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132689.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 55272099 is about 7434.5207646492. The cubic root of 55272099 is about 380.9213538319.

It can be divided in two parts, 5527 and 2099, that added together give a triangular number (7626 = T123).

The spelling of 55272099 in words is "fifty-five million, two hundred seventy-two thousand, ninety-nine".

Divisors: 1 3 139 417 132547 397641 18424033 55272099