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100168073 = 138172533
BaseRepresentation
bin1011111100001…
…11000110001001
320222111001202122
411332013012021
5201120334243
613534541025
72324262125
oct576070611
9228431678
10100168073
11515a6835
1229667775
13179a2165
14d436585
158bd9668
hex5f87189

100168073 has 4 divisors (see below), whose sum is σ = 100241988. Its totient is φ = 100094160.

The previous prime is 100168067. The next prime is 100168087. The reversal of 100168073 is 370861001.

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 65157184 + 35010889 = 8072^2 + 5917^2 .

It is a cyclic number.

It is not a de Polignac number, because 100168073 - 26 = 100168009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100168093) 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, 34886 + ... + 37647.

It is an arithmetic number, because the mean of its divisors is an integer number (25060497).

Almost surely, 2100168073 is an apocalyptic number.

It is an amenable number.

100168073 is a deficient number, since it is larger than the sum of its proper divisors (73915).

100168073 is an equidigital number, since it uses as much as digits as its factorization.

100168073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73914.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 100168073 is about 10008.4001218976. The cubic root of 100168073 is about 464.4187797304.

The spelling of 100168073 in words is "one hundred million, one hundred sixty-eight thousand, seventy-three".

Divisors: 1 1381 72533 100168073