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100200431 = 175894143
BaseRepresentation
bin1011111100011…
…10111111101111
320222112201011002
411332032333233
5201122403211
613535350515
72324455352
oct576167757
9228481132
10100200431
1151619081
122968243b
13179b3ac6
14d444299
158be403b
hex5f8efef

100200431 has 4 divisors (see below), whose sum is σ = 106094592. Its totient is φ = 94306272.

The previous prime is 100200427. The next prime is 100200437. The reversal of 100200431 is 134002001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100200431 - 22 = 100200427 is a prime.

It is a super-2 number, since 2×1002004312 = 20080252745171522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100200437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2947055 + ... + 2947088.

It is an arithmetic number, because the mean of its divisors is an integer number (26523648).

Almost surely, 2100200431 is an apocalyptic number.

100200431 is a deficient number, since it is larger than the sum of its proper divisors (5894161).

100200431 is an equidigital number, since it uses as much as digits as its factorization.

100200431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5894160.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 100200431 is about 10010.0165334529. The cubic root of 100200431 is about 464.4687825059.

Adding to 100200431 its reverse (134002001), we get a palindrome (234202432).

The spelling of 100200431 in words is "one hundred million, two hundred thousand, four hundred thirty-one".

Divisors: 1 17 5894143 100200431