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690001100095 = 5138000220019
BaseRepresentation
bin10100000101001110100…
…01010011110100111111
32102222000100210122122211
422002213101103310333
542301110240200340
61244552050121251
7100564604402566
oct12024721236477
92388010718584
10690001100095
1124669a6a615a
12b1887b80227
13500b3a76418
142557938abdd
1512e363655ea
hexa0a7453d3f

690001100095 has 4 divisors (see below), whose sum is σ = 828001320120. Its totient is φ = 552000880072.

The previous prime is 690001100083. The next prime is 690001100273. The reversal of 690001100095 is 590001100096.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 690001100095 - 217 = 690000969023 is a prime.

It is a super-2 number, since 2×6900011000952 (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69000110005 + ... + 69000110014.

It is an arithmetic number, because the mean of its divisors is an integer number (207000330030).

Almost surely, 2690001100095 is an apocalyptic number.

690001100095 is a deficient number, since it is larger than the sum of its proper divisors (138000220025).

690001100095 is a wasteful number, since it uses less digits than its factorization.

690001100095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138000220024.

The product of its (nonzero) digits is 2430, while the sum is 31.

Subtracting from 690001100095 its reverse (590001100096), we obtain a palindrome (99999999999).

The spelling of 690001100095 in words is "six hundred ninety billion, one million, one hundred thousand, ninety-five".

Divisors: 1 5 138000220019 690001100095