Search a number
-
+
225790129 = 1983143177
BaseRepresentation
bin11010111010101…
…00100010110001
3120201212022211101
431131110202301
5430300241004
634223244401
75411120155
oct1535244261
9521768741
10225790129
111064a8514
1263749701
1337a17036
1421db7065
1514c50ba4
hexd7548b1

225790129 has 8 divisors (see below), whose sum is σ = 240539040. Its totient is φ = 211327776.

The previous prime is 225790069. The next prime is 225790133. The reversal of 225790129 is 921097522.

225790129 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 a cyclic number.

It is not a de Polignac number, because 225790129 - 27 = 225790001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225790139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70012 + ... + 73165.

It is an arithmetic number, because the mean of its divisors is an integer number (30067380).

Almost surely, 2225790129 is an apocalyptic number.

It is an amenable number.

225790129 is a deficient number, since it is larger than the sum of its proper divisors (14748911).

225790129 is a wasteful number, since it uses less digits than its factorization.

225790129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143279.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 225790129 is about 15026.3145514793. The cubic root of 225790129 is about 608.9313269254.

The spelling of 225790129 in words is "two hundred twenty-five million, seven hundred ninety thousand, one hundred twenty-nine".

Divisors: 1 19 83 1577 143177 2720363 11883691 225790129