Search a number
-
+
230402041 = 4323532
BaseRepresentation
bin11011011101110…
…10011111111001
3121001112122011221
431232322133321
5432440331131
634510152041
75465246032
oct1556723771
9531478157
10230402041
11109068511
12651b2621
133897028c
1422857a89
1515362411
hexdbba7f9

230402041 has 9 divisors (see below), whose sum is σ = 236554959. Its totient is φ = 224406336.

The previous prime is 230402033. The next prime is 230402047. The reversal of 230402041 is 140204032.

The square root of 230402041 is 15179.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 93605625 + 136796416 = 9675^2 + 11696^2 .

It is not a de Polignac number, because 230402041 - 23 = 230402033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230402047) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 652521 + ... + 652873.

Almost surely, 2230402041 is an apocalyptic number.

230402041 is the 15179-th square number.

230402041 is the 7590-th centered octagonal number.

It is an amenable number.

230402041 is a deficient number, since it is larger than the sum of its proper divisors (6152918).

230402041 is an frugal number, since it uses more digits than its factorization.

230402041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The cubic root of 230402041 is about 613.0493561381.

Multiplying 230402041 by its sum of digits (16), we get a square (3686432656 = 607162).

Adding to 230402041 its reverse (140204032), we get a palindrome (370606073).

The spelling of 230402041 in words is "two hundred thirty million, four hundred two thousand, forty-one".

Divisors: 1 43 353 1849 15179 124609 652697 5358187 230402041