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100167385 = 520033477
BaseRepresentation
bin1011111100001…
…10111011011001
320222111000211011
411332012323121
5201120324020
613534533521
72324260123
oct576067331
9228430734
10100167385
11515a626a
12296672a1
13179a1a56
14d436213
158bd935a
hex5f86ed9

100167385 has 4 divisors (see below), whose sum is σ = 120200868. Its totient is φ = 80133904.

The previous prime is 100167377. The next prime is 100167409. The reversal of 100167385 is 583761001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63552784 + 36614601 = 7972^2 + 6051^2 .

It is a cyclic number.

It is not a de Polignac number, because 100167385 - 23 = 100167377 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10016734 + ... + 10016743.

It is an arithmetic number, because the mean of its divisors is an integer number (30050217).

Almost surely, 2100167385 is an apocalyptic number.

It is an amenable number.

100167385 is a deficient number, since it is larger than the sum of its proper divisors (20033483).

100167385 is an equidigital number, since it uses as much as digits as its factorization.

100167385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20033482.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 100167385 is about 10008.3657507108. The cubic root of 100167385 is about 464.4177164480.

It can be divided in two parts, 1001 and 67385, that added together give a palindrome (68386).

The spelling of 100167385 in words is "one hundred million, one hundred sixty-seven thousand, three hundred eighty-five".

Divisors: 1 5 20033477 100167385