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231452320000 = 285411131507
BaseRepresentation
bin1101011110001110100…
…0100010000100000000
3211010102022101002101011
43113203220202010000
512243003243220000
6254154442250304
722502414154646
oct3274350420400
9733368332334
10231452320000
118a1818897a0
1238a34ab6994
1318a97551105
14b2b937b196
15604982a2ba
hex35e3a22100

231452320000 has 180 divisors, whose sum is σ = 629803910736. Its totient is φ = 84163840000.

The previous prime is 231452319991. The next prime is 231452320019. The reversal of 231452320000 is 23254132.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1694247 + ... + 1825753.

Almost surely, 2231452320000 is an apocalyptic number.

231452320000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231452320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314901955368).

231452320000 is an abundant number, since it is smaller than the sum of its proper divisors (398351590736).

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

231452320000 is an equidigital number, since it uses as much as digits as its factorization.

231452320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131554 (or 131525 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 231452320000 its reverse (23254132), we get a palindrome (231475574132).

The spelling of 231452320000 in words is "two hundred thirty-one billion, four hundred fifty-two million, three hundred twenty thousand".