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18202010001 = 371078100583
BaseRepresentation
bin10000111100111011…
…001010000110010001
31201222112021220122120
4100330323022012101
5244234203310001
612210100124453
71213030350360
oct207473120621
951875256576
1018202010001
1177a061857a
12363b996729
13194103c726
14c495b37d7
15717ead236
hex43ceca191

18202010001 has 16 divisors (see below), whose sum is σ = 27995618304. Its totient is φ = 10303940304.

The previous prime is 18202009981. The next prime is 18202010011. The reversal of 18202010001 is 10001020281.

It is not a de Polignac number, because 18202010001 - 222 = 18197815697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18202010011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4048045 + ... + 4052538.

It is an arithmetic number, because the mean of its divisors is an integer number (1749726144).

Almost surely, 218202010001 is an apocalyptic number.

It is an amenable number.

18202010001 is a deficient number, since it is larger than the sum of its proper divisors (9793608303).

18202010001 is a wasteful number, since it uses less digits than its factorization.

18202010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8100700.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 18202010001 its reverse (10001020281), we get a palindrome (28203030282).

The spelling of 18202010001 in words is "eighteen billion, two hundred two million, ten thousand, one".

Divisors: 1 3 7 21 107 321 749 2247 8100583 24301749 56704081 170112243 866762381 2600287143 6067336667 18202010001