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18417000535 = 541673314051
BaseRepresentation
bin10001001001101111…
…010010000001010111
31202112111211120012221
4101021233102001113
5300204223004120
612243300123211
71221250631053
oct211157220127
952474746187
1018417000535
1178a0a0a0aa
12369b996507
131976744c6b
14c69d78c63
1572bcc90aa
hex449bd2057

18417000535 has 32 divisors (see below), whose sum is σ = 23052443904. Its totient is φ = 14113440000.

The previous prime is 18417000529. The next prime is 18417000571. The reversal of 18417000535 is 53500071481.

It is a happy number.

It is not a de Polignac number, because 18417000535 - 211 = 18416998487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18417000535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4544260 + ... + 4548310.

It is an arithmetic number, because the mean of its divisors is an integer number (720388872).

Almost surely, 218417000535 is an apocalyptic number.

18417000535 is the 67855-th decagonal number.

18417000535 is a deficient number, since it is larger than the sum of its proper divisors (4635443369).

18417000535 is a wasteful number, since it uses less digits than its factorization.

18417000535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 18417000535 in words is "eighteen billion, four hundred seventeen million, five hundred thirty-five", and thus it is an aban number.

Divisors: 1 5 41 67 205 331 335 1655 2747 4051 13571 13735 20255 22177 67855 110885 166091 271417 830455 909257 1340881 1357085 4546285 6704405 11128097 54976121 55640485 89839027 274880605 449195135 3683400107 18417000535