Search a number
-
+
10010301221 = 19526857959
BaseRepresentation
bin10010101001010100…
…10001001100100101
3221211122010222202002
421110222101030211
5131000114114341
64333151255045
7503031104444
oct112452211445
927748128662
1010010301221
114277610518
121b3451a485
13c36b8617b
146ad684d5b
153d8c4529b
hex254a91325

10010301221 has 4 divisors (see below), whose sum is σ = 10537159200. Its totient is φ = 9483443244.

The previous prime is 10010301181. The next prime is 10010301241. The reversal of 10010301221 is 12210301001.

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: 12210301001 = 73311665571.

It is a cyclic number.

It is not a de Polignac number, because 10010301221 - 218 = 10010039077 is a prime.

It is a super-2 number, since 2×100103012212 (a number of 21 digits) contains 22 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 (10010301241) 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, 263428961 + ... + 263428998.

It is an arithmetic number, because the mean of its divisors is an integer number (2634289800).

Almost surely, 210010301221 is an apocalyptic number.

It is an amenable number.

10010301221 is a deficient number, since it is larger than the sum of its proper divisors (526857979).

10010301221 is an equidigital number, since it uses as much as digits as its factorization.

10010301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526857978.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10010301221 its reverse (12210301001), we get a palindrome (22220602222).

The spelling of 10010301221 in words is "ten billion, ten million, three hundred one thousand, two hundred twenty-one".

Divisors: 1 19 526857959 10010301221