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100212425 = 524878231
BaseRepresentation
bin1011111100100…
…01111011001001
320222120022121022
411332101323021
5201123244200
613535522225
72324535335
oct576217311
9228508538
10100212425
1151627095
1229689375
13179b93c1
14d4487c5
158be7885
hex5f91ec9

100212425 has 12 divisors (see below), whose sum is σ = 124533696. Its totient is φ = 79995600.

The previous prime is 100212421. The next prime is 100212443. The reversal of 100212425 is 524212001.

It is not a de Polignac number, because 100212425 - 22 = 100212421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100212421) 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, 8060 + ... + 16290.

It is an arithmetic number, because the mean of its divisors is an integer number (10377808).

Almost surely, 2100212425 is an apocalyptic number.

It is an amenable number.

100212425 is a deficient number, since it is larger than the sum of its proper divisors (24321271).

100212425 is an equidigital number, since it uses as much as digits as its factorization.

100212425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8728 (or 8723 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 100212425 is about 10010.6156154354. The cubic root of 100212425 is about 464.4873140839.

Adding to 100212425 its reverse (524212001), we get a palindrome (624424426).

The spelling of 100212425 in words is "one hundred million, two hundred twelve thousand, four hundred twenty-five".

Divisors: 1 5 25 487 2435 8231 12175 41155 205775 4008497 20042485 100212425