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101220423 = 365951199
BaseRepresentation
bin1100000100010…
…00000001000111
321001110112022120
412002020001013
5201403023143
614013301023
72336234163
oct602100107
9231415276
10101220423
1152155447
1229a94773
1317c80155
14d62bca3
158d46383
hex6088047

101220423 has 8 divisors (see below), whose sum is σ = 135168000. Its totient is φ = 67376568.

The previous prime is 101220421. The next prime is 101220433. The reversal of 101220423 is 324022101.

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

It is not a de Polignac number, because 101220423 - 21 = 101220421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23623 + ... + 27576.

It is an arithmetic number, because the mean of its divisors is an integer number (16896000).

Almost surely, 2101220423 is an apocalyptic number.

101220423 is a deficient number, since it is larger than the sum of its proper divisors (33947577).

101220423 is an equidigital number, since it uses as much as digits as its factorization.

101220423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51861.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 101220423 is about 10060.8360984562. The cubic root of 101220423 is about 466.0394874654.

Adding to 101220423 its reverse (324022101), we get a palindrome (425242524).

The spelling of 101220423 in words is "one hundred one million, two hundred twenty thousand, four hundred twenty-three".

Divisors: 1 3 659 1977 51199 153597 33740141 101220423