Search a number
-
+
99541881 = 3211060209
BaseRepresentation
bin1011110111011…
…10001101111001
320221022020210100
411323232031321
5200440320011
613513310013
72316043365
oct573561571
9227266710
1099541881
115120931a
1229405309
131781312a
14d3122a5
158b13d56
hex5eee379

99541881 has 6 divisors (see below), whose sum is σ = 143782730. Its totient is φ = 66361248.

The previous prime is 99541879. The next prime is 99541901. The reversal of 99541881 is 18814599.

It can be written as a sum of positive squares in only one way, i.e., 50765625 + 48776256 = 7125^2 + 6984^2 .

It is not a de Polignac number, because 99541881 - 21 = 99541879 is a prime.

It is a super-2 number, since 2×995418812 = 19817172146036322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99541811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5530096 + ... + 5530113.

Almost surely, 299541881 is an apocalyptic number.

It is an amenable number.

99541881 is a deficient number, since it is larger than the sum of its proper divisors (44240849).

99541881 is a wasteful number, since it uses less digits than its factorization.

99541881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060215 (or 11060212 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 99541881 is about 9977.0677556084. The cubic root of 99541881 is about 463.4489982039.

The spelling of 99541881 in words is "ninety-nine million, five hundred forty-one thousand, eight hundred eighty-one".

Divisors: 1 3 9 11060209 33180627 99541881