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230235629 = 1321362341
BaseRepresentation
bin11011011100100…
…01110111101101
3121001020011220112
431232101313231
5432420020004
634502425405
75463653621
oct1556216755
9531204815
10230235629
11108a64488
1265132265
1338912600
1422813181
151532ce6e
hexdb91ded

230235629 has 6 divisors (see below), whose sum is σ = 249308586. Its totient is φ = 212525040.

The previous prime is 230235619. The next prime is 230235647. The reversal of 230235629 is 926532032.

It can be written as a sum of positive squares in 3 ways, for example, as 13468900 + 216766729 = 3670^2 + 14723^2 .

It is not a de Polignac number, because 230235629 - 220 = 229187053 is a prime.

It is a super-2 number, since 2×2302356292 = 106016889722051282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230235595 and 230235604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230235619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 681002 + ... + 681339.

It is an arithmetic number, because the mean of its divisors is an integer number (41551431).

Almost surely, 2230235629 is an apocalyptic number.

It is an amenable number.

230235629 is a deficient number, since it is larger than the sum of its proper divisors (19072957).

230235629 is a wasteful number, since it uses less digits than its factorization.

230235629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362367 (or 1362354 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 230235629 is about 15173.5173575542. The cubic root of 230235629 is about 612.9017252976.

The spelling of 230235629 in words is "two hundred thirty million, two hundred thirty-five thousand, six hundred twenty-nine".

Divisors: 1 13 169 1362341 17710433 230235629