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231254250 = 2353503613
BaseRepresentation
bin11011100100010…
…10100011101010
3121010010221012020
431302022203222
5433200114000
634540325310
75505425433
oct1562124352
9533127166
10231254250
1110959a817
1265543836
1338bab146
14229da48a
151547eba0
hexdc8a8ea

231254250 has 64 divisors (see below), whose sum is σ = 579301632. Its totient is φ = 61444800.

The previous prime is 231254239. The next prime is 231254267. The reversal of 231254250 is 52452132.

231254250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231254250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376944 + ... + 377556.

It is an arithmetic number, because the mean of its divisors is an integer number (9051588).

Almost surely, 2231254250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231254250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289650816).

231254250 is an abundant number, since it is smaller than the sum of its proper divisors (348047382).

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

231254250 is a wasteful number, since it uses less digits than its factorization.

231254250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 231254250 is about 15207.0460642427. The cubic root of 231254250 is about 613.8042732924.

The spelling of 231254250 in words is "two hundred thirty-one million, two hundred fifty-four thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 250 375 503 613 750 1006 1226 1509 1839 2515 3018 3065 3678 5030 6130 7545 9195 12575 15090 15325 18390 25150 30650 37725 45975 62875 75450 76625 91950 125750 153250 188625 229875 308339 377250 459750 616678 925017 1541695 1850034 3083390 4625085 7708475 9250170 15416950 23125425 38542375 46250850 77084750 115627125 231254250