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100101230020 = 22511455005591
BaseRepresentation
bin101110100111001111…
…1111000110111000100
3100120101020010100201201
41131032133320313010
53120001403330040
6113552540432244
710142413262521
oct1351637706704
9316336110651
10100101230020
11394a8597780
1217497848684
13959379406c
144bb8692148
15290d083a9a
hex174e7f8dc4

100101230020 has 24 divisors (see below), whose sum is σ = 229322818368. Its totient is φ = 36400447200.

The previous prime is 100101230011. The next prime is 100101230023. The reversal of 100101230020 is 20032101001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 100101229979 and 100101230006.

It is not an unprimeable number, because it can be changed into a prime (100101230023) 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, 227502576 + ... + 227503015.

It is an arithmetic number, because the mean of its divisors is an integer number (9555117432).

Almost surely, 2100101230020 is an apocalyptic number.

100101230020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100101230020 is an abundant number, since it is smaller than the sum of its proper divisors (129221588348).

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

100101230020 is a wasteful number, since it uses less digits than its factorization.

100101230020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455005611 (or 455005609 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 100101230020 its reverse (20032101001), we get a palindrome (120133331021).

The spelling of 100101230020 in words is "one hundred billion, one hundred one million, two hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 455005591 910011182 1820022364 2275027955 4550055910 5005061501 9100111820 10010123002 20020246004 25025307505 50050615010 100101230020