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2255129 = 19118691
BaseRepresentation
bin1000100110100100011001
311020120110022
420212210121
51034131004
6120200225
725111502
oct10464431
94216408
102255129
111300348
12909075
1360c5c6
14429ba9
152e82be
hex226919

2255129 has 4 divisors (see below), whose sum is σ = 2373840. Its totient is φ = 2136420.

The previous prime is 2255119. The next prime is 2255131. The reversal of 2255129 is 9215522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2255129 - 28 = 2254873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2255098 and 2255107.

It is not an unprimeable number, because it can be changed into a prime (2255119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59327 + ... + 59364.

It is an arithmetic number, because the mean of its divisors is an integer number (593460).

22255129 is an apocalyptic number.

It is an amenable number.

2255129 is a deficient number, since it is larger than the sum of its proper divisors (118711).

2255129 is a wasteful number, since it uses less digits than its factorization.

2255129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118710.

The product of its digits is 1800, while the sum is 26.

The square root of 2255129 is about 1501.7086934556. The cubic root of 2255129 is about 131.1365629087.

The spelling of 2255129 in words is "two million, two hundred fifty-five thousand, one hundred twenty-nine".

Divisors: 1 19 118691 2255129