Search a number
-
+
99919927 = 409244303
BaseRepresentation
bin1011111010010…
…10100000110111
320222000110101001
411331022200313
5201034414202
613525344131
72322206512
oct575124067
9228013331
1099919927
1151447358
1229568047
1317916223
14d3add79
158b8ad87
hex5f4a837

99919927 has 4 divisors (see below), whose sum is σ = 100164640. Its totient is φ = 99675216.

The previous prime is 99919921. The next prime is 99919949. The reversal of 99919927 is 72991999.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-99919927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99919921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121743 + ... + 122560.

It is an arithmetic number, because the mean of its divisors is an integer number (25041160).

Almost surely, 299919927 is an apocalyptic number.

99919927 is a deficient number, since it is larger than the sum of its proper divisors (244713).

99919927 is a wasteful number, since it uses less digits than its factorization.

99919927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244712.

The product of its digits is 826686, while the sum is 55.

The square root of 99919927 is about 9995.9955482183. The cubic root of 99919927 is about 464.0349616319.

It can be divided in two parts, 9991992 and 7, that added together give a palindrome (9991999).

The spelling of 99919927 in words is "ninety-nine million, nine hundred nineteen thousand, nine hundred twenty-seven".

Divisors: 1 409 244303 99919927