Search a number
-
+
102422342021 = 988310363487
BaseRepresentation
bin101111101100011011…
…0001110100110000101
3100210100222201001210212
41133120312032212011
53134230104421041
6115015134125205
710254056354066
oct1373066164605
9323328631725
10102422342021
113a48981855a
1217a25050805
13987361b80c
144d58a5856d
1529e6c258eb
hex17d8d8e985

102422342021 has 4 divisors (see below), whose sum is σ = 102432715392. Its totient is φ = 102411968652.

The previous prime is 102422342003. The next prime is 102422342051. The reversal of 102422342021 is 120243224201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120243224201 = 185416485261.

It is a cyclic number.

It is not a de Polignac number, because 102422342021 - 210 = 102422340997 is a prime.

It is a super-3 number, since 3×1024223420213 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102422342051) 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, 5171861 + ... + 5191626.

It is an arithmetic number, because the mean of its divisors is an integer number (25608178848).

Almost surely, 2102422342021 is an apocalyptic number.

It is an amenable number.

102422342021 is a deficient number, since it is larger than the sum of its proper divisors (10373371).

102422342021 is an equidigital number, since it uses as much as digits as its factorization.

102422342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10373370.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 102422342021 its reverse (120243224201), we get a palindrome (222665566222).

The spelling of 102422342021 in words is "one hundred two billion, four hundred twenty-two million, three hundred forty-two thousand, twenty-one".

Divisors: 1 9883 10363487 102422342021