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18292385677 = 151393130817
BaseRepresentation
bin10001000010010011…
…111010011110001101
31202012211100110202211
4101002103322132031
5244430322320202
612223045150421
71215205466326
oct210223723615
952184313684
1018292385677
117837636115
1236660bb411
131956993667
14c575bb44d
15720db11d7
hex4424fa78d

18292385677 has 8 divisors (see below), whose sum is σ = 18418809152. Its totient is φ = 18166032000.

The previous prime is 18292385653. The next prime is 18292385701. The reversal of 18292385677 is 77658329281.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18292385653) and next prime (18292385701).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-18292385677 is a prime.

It is a super-2 number, since 2×182923856772 (a number of 21 digits) 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 (18292383677) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 578173 + ... + 608989.

It is an arithmetic number, because the mean of its divisors is an integer number (2302351144).

Almost surely, 218292385677 is an apocalyptic number.

It is an amenable number.

18292385677 is a deficient number, since it is larger than the sum of its proper divisors (126423475).

18292385677 is a wasteful number, since it uses less digits than its factorization.

18292385677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34899.

The product of its digits is 10160640, while the sum is 58.

The spelling of 18292385677 in words is "eighteen billion, two hundred ninety-two million, three hundred eighty-five thousand, six hundred seventy-seven".

Divisors: 1 151 3931 30817 593581 4653367 121141627 18292385677