Search a number
-
+
30662017025 = 522322318489
BaseRepresentation
bin11100100011100110…
…010100000000000001
32221010212222212000012
4130203212110000001
51000243434021100
622030321234305
72133555562433
oct344346240001
987125885005
1030662017025
1112004a00242
125b38792995
132b78595a53
1416ac336653
15be6ce7135
hex723994001

30662017025 has 18 divisors (see below), whose sum is σ = 39745874070. Its totient is φ = 23463098560.

The previous prime is 30662017021. The next prime is 30662017033. The reversal of 30662017025 is 52071026603.

It can be written as a sum of positive squares in 3 ways, for example, as 171269569 + 30490747456 = 13087^2 + 174616^2 .

It is not a de Polignac number, because 30662017025 - 22 = 30662017021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30662016982 and 30662017000.

It is not an unprimeable number, because it can be changed into a prime (30662017021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1146020 + ... + 1172469.

It is an arithmetic number, because the mean of its divisors is an integer number (2208104115).

Almost surely, 230662017025 is an apocalyptic number.

It is an amenable number.

30662017025 is a deficient number, since it is larger than the sum of its proper divisors (9083857045).

30662017025 is a wasteful number, since it uses less digits than its factorization.

30662017025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318545 (or 2318517 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 30662017025 in words is "thirty billion, six hundred sixty-two million, seventeen thousand, twenty-five".

Divisors: 1 5 23 25 115 529 575 2645 13225 2318489 11592445 53325247 57962225 266626235 1226480681 1333131175 6132403405 30662017025