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231030302 = 26115112541
BaseRepresentation
bin11011100010100…
…11111000011110
3121002201112222212
431301103320132
5433120432202
634531440422
75503503506
oct1561237036
9532645885
10231030302
11109457538
1265456112
1338b30229
142297ca06
1515438652
hexdc53e1e

231030302 has 16 divisors (see below), whose sum is σ = 354587424. Its totient is φ = 112860000.

The previous prime is 231030299. The next prime is 231030313. The reversal of 231030302 is 203030132.

It is a super-2 number, since 2×2310303022 = 106750000884422408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12152 + ... + 24692.

It is an arithmetic number, because the mean of its divisors is an integer number (22161714).

Almost surely, 2231030302 is an apocalyptic number.

231030302 is a deficient number, since it is larger than the sum of its proper divisors (123557122).

231030302 is a wasteful number, since it uses less digits than its factorization.

231030302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12755.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 231030302 is about 15199.6809834944. The cubic root of 231030302 is about 613.6060720547.

Adding to 231030302 its reverse (203030132), we get a palindrome (434060434).

The spelling of 231030302 in words is "two hundred thirty-one million, thirty thousand, three hundred two".

Divisors: 1 2 61 122 151 302 9211 12541 18422 25082 765001 1530002 1893691 3787382 115515151 231030302