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230906738 = 2731581553
BaseRepresentation
bin11011100001101…
…01101101110010
3121002111021111102
431300311231302
5433103003423
634525044402
75502450326
oct1560655562
9532437442
10230906738
11109382717
12653b6702
1338ab8c0a
1422949986
1515411c28
hexdc35b72

230906738 has 8 divisors (see below), whose sum is σ = 351104988. Its totient is φ = 113871744.

The previous prime is 230906737. The next prime is 230906771. The reversal of 230906738 is 837609032.

It can be written as a sum of positive squares in 2 ways, for example, as 226592809 + 4313929 = 15053^2 + 2077^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (230906737) 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, 790631 + ... + 790922.

Almost surely, 2230906738 is an apocalyptic number.

230906738 is a deficient number, since it is larger than the sum of its proper divisors (120198250).

230906738 is a wasteful number, since it uses less digits than its factorization.

230906738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581628.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 230906738 is about 15195.6157492877. The cubic root of 230906738 is about 613.4966590742.

The spelling of 230906738 in words is "two hundred thirty million, nine hundred six thousand, seven hundred thirty-eight".

Divisors: 1 2 73 146 1581553 3163106 115453369 230906738