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20133031300 = 2252201330313
BaseRepresentation
bin10010110000000001…
…011010110110000100
31220222002211221212221
4102300001122312010
5312213024000200
613125440422124
71311625641154
oct226001326604
956862757787
1020133031300
1185a1631448
123a9a617944
131b8b115095
14d8dc34764
157cc79791a
hex4b005ad84

20133031300 has 18 divisors (see below), whose sum is σ = 43688678138. Its totient is φ = 8053212480.

The previous prime is 20133031271. The next prime is 20133031363. The reversal of 20133031300 is 313033102.

It can be written as a sum of positive squares in 3 ways, for example, as 9339136 + 20123692164 = 3056^2 + 141858^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100665057 + ... + 100665256.

Almost surely, 220133031300 is an apocalyptic number.

20133031300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20133031300 is an abundant number, since it is smaller than the sum of its proper divisors (23555646838).

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

20133031300 is a wasteful number, since it uses less digits than its factorization.

20133031300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201330327 (or 201330320 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20133031300 its reverse (313033102), we get a palindrome (20446064402).

The spelling of 20133031300 in words is "twenty billion, one hundred thirty-three million, thirty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 201330313 402660626 805321252 1006651565 2013303130 4026606260 5033257825 10066515650 20133031300