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231200222019990 = 2357706674067333
BaseRepresentation
bin110100100100011001111111…
…000110110000000110010110
31010022121112011222210201012120
4310210121333012300012112
5220300441023314114430
62135415525444000410
766461444013605466
oct6444317706600626
91108545158721176
10231200222019990
1167738510a53393
1221b2019a690106
139c01119cacab2
144114216badba6
151bae0ad2ac610
hexd2467f1b0196

231200222019990 has 16 divisors (see below), whose sum is σ = 554880532848048. Its totient is φ = 61653392538656.

The previous prime is 231200222019913. The next prime is 231200222019997. The reversal of 231200222019990 is 99910222002132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231200222019997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3853337033637 + ... + 3853337033696.

It is an arithmetic number, because the mean of its divisors is an integer number (34680033303003).

Almost surely, 2231200222019990 is an apocalyptic number.

231200222019990 is an abundant number, since it is smaller than the sum of its proper divisors (323680310828058).

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

231200222019990 is a wasteful number, since it uses less digits than its factorization.

231200222019990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7706674067343.

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 231200222019990 in words is "two hundred thirty-one trillion, two hundred billion, two hundred twenty-two million, nineteen thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 7706674067333 15413348134666 23120022201999 38533370336665 46240044403998 77066740673330 115600111009995 231200222019990