Search a number
-
+
30251129 = 592292239
BaseRepresentation
bin111001101100…
…1100001111001
32002220220202012
41303121201321
530221014004
63000215305
7515062466
oct163314171
962826665
1030251129
1116092137
12a16a535
13636239c
14403666d
1529c846e
hex1cd9879

30251129 has 8 divisors (see below), whose sum is σ = 30912000. Its totient is φ = 29595312.

The previous prime is 30251119. The next prime is 30251131. The reversal of 30251129 is 92115203.

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 30251129 - 216 = 30185593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30251119) 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, 12392 + ... + 14630.

It is an arithmetic number, because the mean of its divisors is an integer number (3864000).

Almost surely, 230251129 is an apocalyptic number.

It is an amenable number.

30251129 is a deficient number, since it is larger than the sum of its proper divisors (660871).

30251129 is a wasteful number, since it uses less digits than its factorization.

30251129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 30251129 is about 5500.1026354060. The cubic root of 30251129 is about 311.5878605154.

The spelling of 30251129 in words is "thirty million, two hundred fifty-one thousand, one hundred twenty-nine".

Divisors: 1 59 229 2239 13511 132101 512731 30251129