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99401611 is a prime number
BaseRepresentation
bin1011110110010…
…11111110001011
320221001010101011
411323023332023
5200421322421
613510304351
72314620421
oct573137613
9227033334
1099401611
11511229a1
12293580b7
131779432a
14d2b7111
158ad74e1
hex5ecbf8b

99401611 has 2 divisors, whose sum is σ = 99401612. Its totient is φ = 99401610.

The previous prime is 99401587. The next prime is 99401651. The reversal of 99401611 is 11610499.

99401611 = T8139 + T8140 + T8141.

It is a weak prime.

It is an emirp because it is prime and its reverse (11610499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99401611 - 25 = 99401579 is a prime.

It is not a weakly prime, because it can be changed into another prime (99401651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49700805 + 49700806.

It is an arithmetic number, because the mean of its divisors is an integer number (49700806).

Almost surely, 299401611 is an apocalyptic number.

99401611 is the 8141-st centered triangular number.

99401611 is a deficient number, since it is larger than the sum of its proper divisors (1).

99401611 is an equidigital number, since it uses as much as digits as its factorization.

99401611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 99401611 is about 9970.0356569072. The cubic root of 99401611 is about 463.2312052853.

The spelling of 99401611 in words is "ninety-nine million, four hundred one thousand, six hundred eleven".