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101423104220 = 2256795774623
BaseRepresentation
bin101111001110101001…
…0011100000011011100
3100200210100110112020102
41132131102130003130
53130203303313340
6114332041040232
710220234106254
oct1363522340334
9320710415212
10101423104220
113a016775399
12177a6486078
1397445ba549
144ca2068964
152989145215
hex179d49c0dc

101423104220 has 24 divisors (see below), whose sum is σ = 212994507264. Its totient is φ = 40568101056.

The previous prime is 101423104219. The next prime is 101423104231. The reversal of 101423104220 is 22401324101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 101423104192 and 101423104201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321829 + ... + 1396451.

It is an arithmetic number, because the mean of its divisors is an integer number (8874771136).

Almost surely, 2101423104220 is an apocalyptic number.

101423104220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101423104220 is an abundant number, since it is smaller than the sum of its proper divisors (111571403044).

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

101423104220 is a wasteful number, since it uses less digits than its factorization.

101423104220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142589 (or 142587 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 101423104220 its reverse (22401324101), we get a palindrome (123824428321).

The spelling of 101423104220 in words is "one hundred one billion, four hundred twenty-three million, one hundred four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 67957 74623 135914 149246 271828 298492 339785 373115 679570 746230 1359140 1492460 5071155211 10142310422 20284620844 25355776055 50711552110 101423104220