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101860117 = 531921889
BaseRepresentation
bin1100001001001…
…00001100010101
321002200000210221
412010210030111
5202034010432
614035114341
72344540162
oct604441425
9232600727
10101860117
1152552017
122a1429b1
1318145378
14d757069
158e20b97
hex6124315

101860117 has 4 divisors (see below), whose sum is σ = 103782060. Its totient is φ = 99938176.

The previous prime is 101860097. The next prime is 101860133. The reversal of 101860117 is 711068101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 711068101 = 2113369991.

It can be written as a sum of positive squares in 2 ways, for example, as 38514436 + 63345681 = 6206^2 + 7959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101860117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101860091 and 101860100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101860177) 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, 960892 + ... + 960997.

It is an arithmetic number, because the mean of its divisors is an integer number (25945515).

Almost surely, 2101860117 is an apocalyptic number.

It is an amenable number.

101860117 is a deficient number, since it is larger than the sum of its proper divisors (1921943).

101860117 is an equidigital number, since it uses as much as digits as its factorization.

101860117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921942.

The product of its (nonzero) digits is 336, while the sum is 25.

The square root of 101860117 is about 10092.5773219728. The cubic root of 101860117 is about 467.0191870967.

The spelling of 101860117 in words is "one hundred one million, eight hundred sixty thousand, one hundred seventeen".

Divisors: 1 53 1921889 101860117