Search a number
-
+
13154442101 = 731011784137
BaseRepresentation
bin11000100000001000…
…01101101101110101
31020221202101220012022
430100010031231311
5203420014121401
610013145202525
7643656625103
oct142004155565
936852356168
1013154442101
115640381059
122671490445
131318397768
148cb08cc73
1551ecac71b
hex31010db75

13154442101 has 8 divisors (see below), whose sum is σ = 13466673624. Its totient is φ = 12845779200.

The previous prime is 13154442061. The next prime is 13154442157. The reversal of 13154442101 is 10124445131.

It can be written as a sum of positive squares in 4 ways, for example, as 4519200625 + 8635241476 = 67225^2 + 92926^2 .

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 13154442101 - 210 = 13154441077 is a prime.

It is a super-2 number, since 2×131544421012 (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 (13154442701) 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, 884696 + ... + 899441.

It is an arithmetic number, because the mean of its divisors is an integer number (1683334203).

Almost surely, 213154442101 is an apocalyptic number.

It is an amenable number.

13154442101 is a deficient number, since it is larger than the sum of its proper divisors (312231523).

13154442101 is a wasteful number, since it uses less digits than its factorization.

13154442101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784311.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 13154442101 its reverse (10124445131), we get a palindrome (23278887232).

The spelling of 13154442101 in words is "thirteen billion, one hundred fifty-four million, four hundred forty-two thousand, one hundred one".

Divisors: 1 73 101 7373 1784137 130242001 180197837 13154442101