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230400311231000 = 23537355713734127
BaseRepresentation
bin110100011000110001000000…
…101101010000001000011000
31010012210001110211112100201102
4310120301000231100020120
5220144334314133343000
62134004235231410532
766346605332232041
oct6430610055201030
91105701424470642
10230400311231000
116745a2501911a9
1221a1115a083a48
139b7386b66a201
1440c761262b8c8
151b98392c3d3d5
hexd18c40b50218

230400311231000 has 256 divisors, whose sum is σ = 548034876380160. Its totient is φ = 90646411161600.

The previous prime is 230400311230993. The next prime is 230400311231003. The reversal of 230400311231000 is 132113004032.

It is a super-2 number, since 2×2304003112310002 (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230400311231003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55827550937 + ... + 55827555063.

It is an arithmetic number, because the mean of its divisors is an integer number (2140761235860).

Almost surely, 2230400311231000 is an apocalyptic number.

230400311231000 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 230400311231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274017438190080).

230400311231000 is an abundant number, since it is smaller than the sum of its proper divisors (317634565149160).

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

230400311231000 is a wasteful number, since it uses less digits than its factorization.

230400311231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6151 (or 6137 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 230400311231000 its reverse (132113004032), we get a palindrome (230532424235032).

The spelling of 230400311231000 in words is "two hundred thirty trillion, four hundred billion, three hundred eleven million, two hundred thirty-one thousand".