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231403121300200 = 23521157015606501
BaseRepresentation
bin110100100111010110111100…
…110110000101001011101000
31010100022220220101121002110111
4310213112330312011023220
5220312302043023101300
62140053043143424104
766512216031204463
oct6447267466051350
91110286811532414
10231403121300200
1167806570341733
1221b53585155034
139c172b3b7a195
14411dd83d5a2da
151bb44d602c9ba
hexd275bcd852e8

231403121300200 has 24 divisors (see below), whose sum is σ = 538012257023430. Its totient is φ = 92561248520000.

The previous prime is 231403121300189. The next prime is 231403121300207. The reversal of 231403121300200 is 2003121304132.

It can be written as a sum of positive squares in 3 ways, for example, as 152148721880164 + 79254399420036 = 12334858^2 + 8902494^2 .

It is not an unprimeable number, because it can be changed into a prime (231403121300207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 578507803051 + ... + 578507803450.

Almost surely, 2231403121300200 is an apocalyptic number.

231403121300200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231403121300200 is an abundant number, since it is smaller than the sum of its proper divisors (306609135723230).

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

231403121300200 is a wasteful number, since it uses less digits than its factorization.

231403121300200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157015606517 (or 1157015606508 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231403121300200 its reverse (2003121304132), we get a palindrome (233406242604332).

The spelling of 231403121300200 in words is "two hundred thirty-one trillion, four hundred three billion, one hundred twenty-one million, three hundred thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 1157015606501 2314031213002 4628062426004 5785078032505 9256124852008 11570156065010 23140312130020 28925390162525 46280624260040 57850780325050 115701560650100 231403121300200