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18362929229 = 21383858763
BaseRepresentation
bin10001000110100001…
…000001000001001101
31202101202002110022222
4101012201001001031
5300101402213404
612234045145125
71220023215551
oct210641010115
952352073288
1018362929229
117873438577
12368585b1a5
1319684926c8
14c62b01861
15727197dbe
hex44684104d

18362929229 has 4 divisors (see below), whose sum is σ = 18363809376. Its totient is φ = 18362049084.

The previous prime is 18362929201. The next prime is 18362929231. The reversal of 18362929229 is 92292926381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92292926381 = 330127959081.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-18362929229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18362929279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407999 + ... + 450764.

It is an arithmetic number, because the mean of its divisors is an integer number (4590952344).

Almost surely, 218362929229 is an apocalyptic number.

It is an amenable number.

18362929229 is a deficient number, since it is larger than the sum of its proper divisors (880147).

18362929229 is an equidigital number, since it uses as much as digits as its factorization.

18362929229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880146.

The product of its digits is 1679616, while the sum is 53.

The spelling of 18362929229 in words is "eighteen billion, three hundred sixty-two million, nine hundred twenty-nine thousand, two hundred twenty-nine".

Divisors: 1 21383 858763 18362929229