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194994000351 = 337359798129
BaseRepresentation
bin1011010110011010001…
…1000101000111011111
3200122022110121112222000
42311212203011013133
511143321431002401
6225325022053343
720042063440563
oct2654643050737
9618273545860
10194994000351
1175773036607
123195b11a253
131550716c7c7
14961b2db6a3
155113c35186
hex2d668c51df

194994000351 has 16 divisors (see below), whose sum is σ = 288886869600. Its totient is φ = 129992909184.

The previous prime is 194994000343. The next prime is 194994000359. The reversal of 194994000351 is 153000499491.

194994000351 is a `hidden beast` number, since 194 + 9 + 9 + 400 + 0 + 3 + 51 = 666.

It is an interprime number because it is at equal distance from previous prime (194994000343) and next prime (194994000359).

It is not a de Polignac number, because 194994000351 - 23 = 194994000343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 194994000297 and 194994000306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194994000359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1938055 + ... + 2036183.

It is an arithmetic number, because the mean of its divisors is an integer number (18055429350).

Almost surely, 2194994000351 is an apocalyptic number.

194994000351 is the 220791-st decagonal number.

194994000351 is a deficient number, since it is larger than the sum of its proper divisors (93892869249).

194994000351 is an equidigital number, since it uses as much as digits as its factorization.

194994000351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171735 (or 171729 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 194994000351 in words is "one hundred ninety-four billion, nine hundred ninety-four million, three hundred fifty-one", and thus it is an aban number.

Divisors: 1 3 9 27 73597 98129 220791 294387 662373 883161 1987119 2649483 7222000013 21666000039 64998000117 194994000351