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210100133100021 = 370033377700007
BaseRepresentation
bin101111110001010110111111…
…110011001111100111110101
31000112220101011111221211112220
4233301112333303033213311
5210014240033033200041
62022502400234232553
762153143105202253
oct5761267763174765
91015811144854486
10210100133100021
1160a42a6992148a
121b692991585759
139030485689638
1439c4c8773d5d3
1519452bec5dd66
hexbf15bfccf9f5

210100133100021 has 4 divisors (see below), whose sum is σ = 280133510800032. Its totient is φ = 140066755400012.

The previous prime is 210100133100017. The next prime is 210100133100061. The reversal of 210100133100021 is 120001331001012.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 210100133100021 - 22 = 210100133100017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210100133100061) 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, 35016688850001 + ... + 35016688850006.

It is an arithmetic number, because the mean of its divisors is an integer number (70033377700008).

Almost surely, 2210100133100021 is an apocalyptic number.

It is an amenable number.

210100133100021 is a deficient number, since it is larger than the sum of its proper divisors (70033377700011).

210100133100021 is an equidigital number, since it uses as much as digits as its factorization.

210100133100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70033377700010.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 210100133100021 its reverse (120001331001012), we get a palindrome (330101464101033).

The spelling of 210100133100021 in words is "two hundred ten trillion, one hundred billion, one hundred thirty-three million, one hundred thousand, twenty-one".

Divisors: 1 3 70033377700007 210100133100021