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231072352 = 2572344851
BaseRepresentation
bin11011100010111…
…10001001100000
3121002210200200021
431301132021200
5433123303402
634532403224
75504040220
oct1561361140
9532720607
10231072352
11109486095
1265476514
1338b46404
1422990080
1515445d37
hexdc5e260

231072352 has 48 divisors (see below), whose sum is σ = 542529792. Its totient is φ = 94723200.

The previous prime is 231072337. The next prime is 231072367. The reversal of 231072352 is 253270132.

It is an interprime number because it is at equal distance from previous prime (231072337) and next prime (231072367).

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 7 ways as a sum of consecutive naturals, for example, 17274 + ... + 27577.

It is an arithmetic number, because the mean of its divisors is an integer number (11302704).

Almost surely, 2231072352 is an apocalyptic number.

It is an amenable number.

231072352 is an abundant number, since it is smaller than the sum of its proper divisors (311457440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231072352 is a wasteful number, since it uses less digits than its factorization.

231072352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44891 (or 44883 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 231072352 is about 15201.0641732742. The cubic root of 231072352 is about 613.6432974314.

The spelling of 231072352 in words is "two hundred thirty-one million, seventy-two thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 23 28 32 46 56 92 112 161 184 224 322 368 644 736 1288 2576 5152 44851 89702 179404 313957 358808 627914 717616 1031573 1255828 1435232 2063146 2511656 4126292 5023312 7221011 8252584 10046624 14442022 16505168 28884044 33010336 57768088 115536176 231072352