Search a number
-
+
105697019 = 1948711423
BaseRepresentation
bin1100100110011…
…00111011111011
321100212222001102
412103030323323
5204024301034
614253242015
72422260401
oct623147373
9240788042
10105697019
115473280a
122b49330b
1318b8991c
1410075471
15942c97e
hex64ccefb

105697019 has 8 divisors (see below), whose sum is σ = 111498240. Its totient is φ = 99919656.

The previous prime is 105697013. The next prime is 105697037. The reversal of 105697019 is 910796501.

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 105697019 - 216 = 105631483 is a prime.

It is a super-2 number, since 2×1056970192 = 22343719650972722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105697013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3542 + ... + 14964.

It is an arithmetic number, because the mean of its divisors is an integer number (13937280).

Almost surely, 2105697019 is an apocalyptic number.

105697019 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

105697019 is a deficient number, since it is larger than the sum of its proper divisors (5801221).

105697019 is a wasteful number, since it uses less digits than its factorization.

105697019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11929.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 105697019 is about 10280.9055535006. The cubic root of 105697019 is about 472.8110084420.

The spelling of 105697019 in words is "one hundred five million, six hundred ninety-seven thousand, nineteen".

Divisors: 1 19 487 9253 11423 217037 5563001 105697019