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18300290734 = 211831831397
BaseRepresentation
bin10001000010110010…
…000100011010101110
31202020101020002110201
4101002302010122232
5244434333300414
612223530424114
71215332622205
oct210262043256
952211202421
1018300290734
117841045320
12366889203a
1319585007cb
14c5867823c
15721923574
hex442c846ae

18300290734 has 8 divisors (see below), whose sum is σ = 29945930328. Its totient is φ = 8318313960.

The previous prime is 18300290731. The next prime is 18300290741. The reversal of 18300290734 is 43709200381.

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

It is a junction number, because it is equal to n+sod(n) for n = 18300290693 and 18300290702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18300290731) 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, 415915677 + ... + 415915720.

It is an arithmetic number, because the mean of its divisors is an integer number (3743241291).

Almost surely, 218300290734 is an apocalyptic number.

18300290734 is a deficient number, since it is larger than the sum of its proper divisors (11645639594).

18300290734 is a wasteful number, since it uses less digits than its factorization.

18300290734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831831410.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 18300290734 in words is "eighteen billion, three hundred million, two hundred ninety thousand, seven hundred thirty-four".

Divisors: 1 2 11 22 831831397 1663662794 9150145367 18300290734