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10101994 = 27721571
BaseRepresentation
bin100110100010…
…010011101010
3201000020022221
4212202103222
510041230434
61000304254
7151602610
oct46422352
921006287
1010101994
11577a861
12347208a
132129116
1414ad6b0
15d482b4
hex9a24ea

10101994 has 8 divisors (see below), whose sum is σ = 17317728. Its totient is φ = 4329420.

The previous prime is 10101979. The next prime is 10102003. The reversal of 10101994 is 49910101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360772 + ... + 360799.

It is an arithmetic number, because the mean of its divisors is an integer number (2164716).

Almost surely, 210101994 is an apocalyptic number.

10101994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10101994 is a deficient number, since it is larger than the sum of its proper divisors (7215734).

10101994 is an equidigital number, since it uses as much as digits as its factorization.

10101994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721580.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 10101994 is about 3178.3634153444. The cubic root of 10101994 is about 216.1734574909.

The spelling of 10101994 in words is "ten million, one hundred one thousand, nine hundred ninety-four".

Divisors: 1 2 7 14 721571 1443142 5050997 10101994