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102021442404241 = 2772377315492721
BaseRepresentation
bin10111001100100110110111…
…110101010111111110010001
3111101020011011201211101010211
4113030212313311113332101
5101333004403223413431
61000552000440524121
730326543310110353
oct2714466765277621
9441204151741124
10102021442404241
112a5640615a86a8
12b538532780641
1344c0771b5c679
141b29c153770d3
15bbdc29e872b1
hex5cc9b7d57f91

102021442404241 has 8 divisors (see below), whose sum is σ = 102394064446184. Its totient is φ = 101648851395840.

The previous prime is 102021442404239. The next prime is 102021442404319. The reversal of 102021442404241 is 142404244120201.

It can be written as a sum of positive squares in 4 ways, for example, as 20326887846225 + 81694554558016 = 4508535^2 + 9038504^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102021442404241 - 21 = 102021442404239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102021442404221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1161240 + ... + 14331481.

It is an arithmetic number, because the mean of its divisors is an integer number (12799258055773).

Almost surely, 2102021442404241 is an apocalyptic number.

It is an amenable number.

102021442404241 is a deficient number, since it is larger than the sum of its proper divisors (372622041943).

102021442404241 is a wasteful number, since it uses less digits than its factorization.

102021442404241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15516771.

The product of its (nonzero) digits is 16384, while the sum is 31.

Adding to 102021442404241 its reverse (142404244120201), we get a palindrome (244425686524442).

The spelling of 102021442404241 in words is "one hundred two trillion, twenty-one billion, four hundred forty-two million, four hundred four thousand, two hundred forty-one".

Divisors: 1 277 23773 6585121 15492721 4291483717 368308456333 102021442404241