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230605402 = 2412812261
BaseRepresentation
bin11011011111011…
…00001001011010
3121001220222010211
431233230021122
5433013333102
634514401334
75500053646
oct1557541132
9531828124
10230605402
11109197285
126529024a
1338a11a01
14228abc26
15153a27d7
hexdbec25a

230605402 has 8 divisors (see below), whose sum is σ = 354345012. Its totient is φ = 112490400.

The previous prime is 230605381. The next prime is 230605409. The reversal of 230605402 is 204506032.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 227074761 + 3530641 = 15069^2 + 1879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (230605409) 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, 1406049 + ... + 1406212.

Almost surely, 2230605402 is an apocalyptic number.

230605402 is a deficient number, since it is larger than the sum of its proper divisors (123739610).

230605402 is a wasteful number, since it uses less digits than its factorization.

230605402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812304.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 230605402 is about 15185.6972839577. The cubic root of 230605402 is about 613.2296694549.

The spelling of 230605402 in words is "two hundred thirty million, six hundred five thousand, four hundred two".

Divisors: 1 2 41 82 2812261 5624522 115302701 230605402