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101992893 = 3191789349
BaseRepresentation
bin1100001010001…
…00100110111101
321002220202221120
412011010212331
5202102233033
614042021153
72345632242
oct605044675
9232822846
10101992893
1152632852
122a1a77b9
1318190932
14d78d5c9
158e4a1b3
hex61449bd

101992893 has 8 divisors (see below), whose sum is σ = 143148000. Its totient is φ = 64416528.

The previous prime is 101992889. The next prime is 101992903. The reversal of 101992893 is 398299101.

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

It is not a de Polignac number, because 101992893 - 22 = 101992889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101992993) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 894618 + ... + 894731.

It is an arithmetic number, because the mean of its divisors is an integer number (17893500).

Almost surely, 2101992893 is an apocalyptic number.

It is an amenable number.

101992893 is a deficient number, since it is larger than the sum of its proper divisors (41155107).

101992893 is a wasteful number, since it uses less digits than its factorization.

101992893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789371.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 101992893 is about 10099.1530833036. The cubic root of 101992893 is about 467.2220208710. Note that the first 3 decimals are identical.

The spelling of 101992893 in words is "one hundred one million, nine hundred ninety-two thousand, eight hundred ninety-three".

Divisors: 1 3 19 57 1789349 5368047 33997631 101992893