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6910121021101 = 208913537244357
BaseRepresentation
bin110010010001110001101…
…0011110000111010101101
3220110121020012210202222221
41210203203103300322231
51401203411440133401
622410244335035341
71312145145356644
oct144434323607255
926417205722887
106910121021101
1122246251961a1
1293728966bb51
133b18108c9c8c
1419c64743c35b
15beb34cca7a1
hex648e34f0ead

6910121021101 has 8 divisors (see below), whose sum is σ = 6913967882360. Its totient is φ = 6906274679808.

The previous prime is 6910121021099. The next prime is 6910121021117. The reversal of 6910121021101 is 1011201210196.

It can be written as a sum of positive squares in 4 ways, for example, as 5402026499076 + 1508094522025 = 2324226^2 + 1228045^2 .

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 6910121021101 - 21 = 6910121021099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6910121021701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28156615 + ... + 28400971.

It is an arithmetic number, because the mean of its divisors is an integer number (864245985295).

Almost surely, 26910121021101 is an apocalyptic number.

It is an amenable number.

6910121021101 is a deficient number, since it is larger than the sum of its proper divisors (3846861259).

6910121021101 is a wasteful number, since it uses less digits than its factorization.

6910121021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259983.

The product of its (nonzero) digits is 216, while the sum is 25.

Adding to 6910121021101 its reverse (1011201210196), we get a palindrome (7921322231297).

The spelling of 6910121021101 in words is "six trillion, nine hundred ten billion, one hundred twenty-one million, twenty-one thousand, one hundred one".

Divisors: 1 2089 13537 244357 28278793 510461773 3307860709 6910121021101