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231152214 = 23192922411
BaseRepresentation
bin11011100011100…
…01101001010110
3121002221202020010
431301301221112
5433133332324
634534221050
75504522106
oct1561615126
9532852203
10231152214
11109530097
12654b4786
1338b73877
14229b1206
151545e829
hexdc71a56

231152214 has 48 divisors (see below), whose sum is σ = 504204480. Its totient is φ = 70449120.

The previous prime is 231152191. The next prime is 231152249. The reversal of 231152214 is 412251132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94669 + ... + 97079.

It is an arithmetic number, because the mean of its divisors is an integer number (10504260).

Almost surely, 2231152214 is an apocalyptic number.

231152214 is an abundant number, since it is smaller than the sum of its proper divisors (273052266).

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

231152214 is a wasteful number, since it uses less digits than its factorization.

231152214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493 (or 2464 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 231152214 is about 15203.6908019073. The cubic root of 231152214 is about 613.7139840019.

The spelling of 231152214 in words is "two hundred thirty-one million, one hundred fifty-two thousand, two hundred fourteen".

Divisors: 1 2 3 6 19 29 38 57 58 87 114 174 551 841 1102 1653 1682 2411 2523 3306 4822 5046 7233 14466 15979 31958 45809 47937 69919 91618 95874 137427 139838 209757 274854 419514 1328461 2027651 2656922 3985383 4055302 6082953 7970766 12165906 38525369 77050738 115576107 231152214