Base | Representation |
---|---|
bin | 11101000110101101… |
… | …101011110010001010 |
3 | 2222122221120000021110 |
4 | 131012231223302022 |
5 | 1003000243331020 |
6 | 22205004351150 |
7 | 2154301260231 |
oct | 350655536212 |
9 | 88587500243 |
10 | 31251152010 |
11 | 12287508061 |
12 | 6081b454b6 |
13 | 2c40659130 |
14 | 1726691b18 |
15 | c2d8ba8e0 |
hex | 746b6bc8a |
31251152010 has 64 divisors (see below), whose sum is σ = 82955279232. Its totient is φ = 7484679936.
The previous prime is 31251151991. The next prime is 31251152021. The reversal of 31251152010 is 1025115213.
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1068424 + ... + 1097283.
It is an arithmetic number, because the mean of its divisors is an integer number (1296176238).
Almost surely, 231251152010 is an apocalyptic number.
31251152010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
31251152010 is an abundant number, since it is smaller than the sum of its proper divisors (51704127222).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31251152010 is a wasteful number, since it uses less digits than its factorization.
31251152010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2165767.
The product of its (nonzero) digits is 300, while the sum is 21.
Adding to 31251152010 its reverse (1025115213), we get a palindrome (32276267223).
The spelling of 31251152010 in words is "thirty-one billion, two hundred fifty-one million, one hundred fifty-two thousand, ten".
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