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190116005 = 5349108949
BaseRepresentation
bin10110101010011…
…11000010100101
3111020201220010112
423111033002211
5342132203010
630510502405
74465650032
oct1325170245
9436656115
10190116005
1198351a72
1253804a05
13305064a1
141b36c389
1511a55a05
hexb54f0a5

190116005 has 8 divisors (see below), whose sum is σ = 228795000. Its totient is φ = 151655616.

The previous prime is 190115971. The next prime is 190116053. The reversal of 190116005 is 500611091.

190116005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 100681156 + 89434849 = 10034^2 + 9457^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-190116005 is a prime.

It is a super-2 number, since 2×1901160052 = 72288190714320050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52730 + ... + 56219.

It is an arithmetic number, because the mean of its divisors is an integer number (28599375).

Almost surely, 2190116005 is an apocalyptic number.

It is an amenable number.

190116005 is a deficient number, since it is larger than the sum of its proper divisors (38678995).

190116005 is a wasteful number, since it uses less digits than its factorization.

190116005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109303.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 190116005 is about 13788.2560536132. The cubic root of 190116005 is about 575.0066842323.

Adding to 190116005 its reverse (500611091), we get a palindrome (690727096).

The spelling of 190116005 in words is "one hundred ninety million, one hundred sixteen thousand, five".

Divisors: 1 5 349 1745 108949 544745 38023201 190116005