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101210101093 = 731386439741
BaseRepresentation
bin101111001000010010…
…1111001010101100101
3100200020111122211212201
41132100211321111211
53124234241213333
6114254551414501
710212036444013
oct1362045712545
9320214584781
10101210101093
1139a17510a52
1217747084431
13970c42c7aa
144c81a5d8b3
1529755bd17d
hex1790979565

101210101093 has 4 divisors (see below), whose sum is σ = 102596540908. Its totient is φ = 99823661280.

The previous prime is 101210101081. The next prime is 101210101219. The reversal of 101210101093 is 390101012101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 74508253444 + 26701847649 = 272962^2 + 163407^2 .

It is a cyclic number.

It is not a de Polignac number, because 101210101093 - 233 = 92620166501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101210101093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101210101063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693219798 + ... + 693219943.

It is an arithmetic number, because the mean of its divisors is an integer number (25649135227).

Almost surely, 2101210101093 is an apocalyptic number.

It is an amenable number.

101210101093 is a deficient number, since it is larger than the sum of its proper divisors (1386439815).

101210101093 is an equidigital number, since it uses as much as digits as its factorization.

101210101093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386439814.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 101210101093 its reverse (390101012101), we get a palindrome (491311113194).

The spelling of 101210101093 in words is "one hundred one billion, two hundred ten million, one hundred one thousand, ninety-three".

Divisors: 1 73 1386439741 101210101093