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18606029 = 132575569
BaseRepresentation
bin100011011111…
…0011111001101
31022000021200012
41012332133031
514230343104
61502443005
7314101661
oct106763715
938007605
1018606029
11a558a92
126293465
133b15ab0
1426848a1
151977d6e
hex11be7cd

18606029 has 8 divisors (see below), whose sum is σ = 20118840. Its totient is φ = 17104896.

The previous prime is 18606017. The next prime is 18606043. The reversal of 18606029 is 92060681.

It can be written as a sum of positive squares in 4 ways, for example, as 2244004 + 16362025 = 1498^2 + 4045^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 18606029 - 24 = 18606013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18605986 and 18606004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18606089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557 + ... + 6125.

It is an arithmetic number, because the mean of its divisors is an integer number (2514855).

Almost surely, 218606029 is an apocalyptic number.

It is an amenable number.

18606029 is a deficient number, since it is larger than the sum of its proper divisors (1512811).

18606029 is a wasteful number, since it uses less digits than its factorization.

18606029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5839.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 18606029 is about 4313.4706443883. The cubic root of 18606029 is about 264.9829299554.

The spelling of 18606029 in words is "eighteen million, six hundred six thousand, twenty-nine".

Divisors: 1 13 257 3341 5569 72397 1431233 18606029