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20235100 = 22521711903
BaseRepresentation
bin100110100110…
…0001101011100
31102002001100011
41031030031130
520140010400
62001413004
7333665314
oct115141534
942061304
1020235100
1110470a26
12693a164
134266442
14298a444
151b9a8ba
hex134c35c

20235100 has 36 divisors (see below), whose sum is σ = 46497024. Its totient is φ = 7617280.

The previous prime is 20235097. The next prime is 20235107. The reversal of 20235100 is 153202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20235107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4252 + ... + 7651.

It is an arithmetic number, because the mean of its divisors is an integer number (1291584).

Almost surely, 220235100 is an apocalyptic number.

20235100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20235100 is an abundant number, since it is smaller than the sum of its proper divisors (26261924).

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

20235100 is a wasteful number, since it uses less digits than its factorization.

20235100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11934 (or 11927 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 20235100 is about 4498.3441397919. The cubic root of 20235100 is about 272.5012204305.

Adding to 20235100 its reverse (153202), we get a palindrome (20388302).

The spelling of 20235100 in words is "twenty million, two hundred thirty-five thousand, one hundred".

Divisors: 1 2 4 5 10 17 20 25 34 50 68 85 100 170 340 425 850 1700 11903 23806 47612 59515 119030 202351 238060 297575 404702 595150 809404 1011755 1190300 2023510 4047020 5058775 10117550 20235100