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10120100101 = 29348968969
BaseRepresentation
bin10010110110011010…
…00111100100000101
3222010021202100111021
421123031013210011
5131211221200401
64352112511141
7505533301006
oct113315074405
928107670437
1010120100101
114323594aa1
121b6524b4b1
13c5384ab17
146c00a71ad
153e36d32a1
hex25b347905

10120100101 has 4 divisors (see below), whose sum is σ = 10469069100. Its totient is φ = 9771131104.

The previous prime is 10120100099. The next prime is 10120100147. The reversal of 10120100101 is 10100102101.

10120100101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8662769476 + 1457330625 = 93074^2 + 38175^2 .

It is a cyclic number.

It is not a de Polignac number, because 10120100101 - 21 = 10120100099 is a prime.

It is a super-3 number, since 3×101201001013 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120100191) 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, 174484456 + ... + 174484513.

It is an arithmetic number, because the mean of its divisors is an integer number (2617267275).

Almost surely, 210120100101 is an apocalyptic number.

It is an amenable number.

10120100101 is a deficient number, since it is larger than the sum of its proper divisors (348968999).

10120100101 is an equidigital number, since it uses as much as digits as its factorization.

10120100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348968998.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 10120100101 its reverse (10100102101), we get a palindrome (20220202202).

The spelling of 10120100101 in words is "ten billion, one hundred twenty million, one hundred thousand, one hundred one".

Divisors: 1 29 348968969 10120100101