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231042302 = 2115521151
BaseRepresentation
bin11011100010101…
…10110011111110
3121002202011110022
431301112303332
5433121323202
634532012142
75503553501
oct1561266376
9532664408
10231042302
11109465557
1265461052
1338b3582a
1422983138
151543bea2
hexdc56cfe

231042302 has 4 divisors (see below), whose sum is σ = 346563456. Its totient is φ = 115521150.

The previous prime is 231042293. The next prime is 231042323. The reversal of 231042302 is 203240132.

231042302 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57760574 + ... + 57760577.

It is an arithmetic number, because the mean of its divisors is an integer number (86640864).

Almost surely, 2231042302 is an apocalyptic number.

231042302 is a deficient number, since it is larger than the sum of its proper divisors (115521154).

231042302 is a wasteful number, since it uses less digits than its factorization.

231042302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115521153.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 231042302 is about 15200.0757234956. The cubic root of 231042302 is about 613.6166956905.

Adding to 231042302 its reverse (203240132), we get a palindrome (434282434).

The spelling of 231042302 in words is "two hundred thirty-one million, forty-two thousand, three hundred two".

Divisors: 1 2 115521151 231042302