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231157300 = 225211210143
BaseRepresentation
bin11011100011100…
…10111000110100
3121002222000012111
431301302320310
5433134013200
634534300404
75504542663
oct1561627064
9532860174
10231157300
111095339a0
12654b7704
1338b75c8a
14229b2dda
15154610ba
hexdc72e34

231157300 has 36 divisors (see below), whose sum is σ = 547214976. Its totient is φ = 84056800.

The previous prime is 231157273. The next prime is 231157301. The reversal of 231157300 is 3751132.

231157300 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

231157300 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231157301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103972 + ... + 106171.

It is an arithmetic number, because the mean of its divisors is an integer number (15200416).

Almost surely, 2231157300 is an apocalyptic number.

231157300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231157300 is an abundant number, since it is smaller than the sum of its proper divisors (316057676).

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

231157300 is a wasteful number, since it uses less digits than its factorization.

231157300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210168 (or 210161 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 231157300 is about 15203.8580630049. The cubic root of 231157300 is about 613.7184851145.

The spelling of 231157300 in words is "two hundred thirty-one million, one hundred fifty-seven thousand, three hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 210143 420286 840572 1050715 2101430 2311573 4202860 4623146 5253575 9246292 10507150 11557865 21014300 23115730 46231460 57789325 115578650 231157300