Search a number
-
+
99614881 is a prime number
BaseRepresentation
bin1011111000000…
…00000010100001
320221102221221001
411330000002201
5201000134011
613515032001
72316466252
oct574000241
9227387831
1099614881
1151259153
122943b601
131783a422
14d330b29
158b2a7c1
hex5f000a1

99614881 has 2 divisors, whose sum is σ = 99614882. Its totient is φ = 99614880.

The previous prime is 99614839. The next prime is 99614899. The reversal of 99614881 is 18841699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95550625 + 4064256 = 9775^2 + 2016^2 .

It is an emirp because it is prime and its reverse (18841699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99614881 - 215 = 99582113 is a prime.

It is a super-2 number, since 2×996148812 = 19846249033288322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99614821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49807440 + 49807441.

It is an arithmetic number, because the mean of its divisors is an integer number (49807441).

Almost surely, 299614881 is an apocalyptic number.

It is an amenable number.

99614881 is a deficient number, since it is larger than the sum of its proper divisors (1).

99614881 is an equidigital number, since it uses as much as digits as its factorization.

99614881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 46.

The square root of 99614881 is about 9980.7254746336. The cubic root of 99614881 is about 463.5622621206.

The spelling of 99614881 in words is "ninety-nine million, six hundred fourteen thousand, eight hundred eighty-one".