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231023302 = 217113157383
BaseRepresentation
bin11011100010100…
…10001011000110
3121002201012101121
431301102023012
5433120221202
634531344154
75503444216
oct1561221306
9532635347
10231023302
11109452254
126545205a
1338b29ca3
142297a246
1515436537
hexdc522c6

231023302 has 32 divisors (see below), whose sum is σ = 373496832. Its totient is φ = 106788864.

The previous prime is 231023297. The next prime is 231023341. The reversal of 231023302 is 203320132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603003 + ... + 603385.

It is an arithmetic number, because the mean of its divisors is an integer number (11671776).

Almost surely, 2231023302 is an apocalyptic number.

231023302 is a deficient number, since it is larger than the sum of its proper divisors (142473530).

231023302 is a wasteful number, since it uses less digits than its factorization.

231023302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 231023302 is about 15199.4507137594. The cubic root of 231023302 is about 613.5998747639.

Adding to 231023302 its reverse (203320132), we get a palindrome (434343434).

The spelling of 231023302 in words is "two hundred thirty-one million, twenty-three thousand, three hundred two".

Divisors: 1 2 17 34 113 157 226 314 383 766 1921 2669 3842 5338 6511 13022 17741 35482 43279 60131 86558 120262 301597 603194 735743 1022227 1471486 2044454 6794803 13589606 115511651 231023302