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112520023213 = 1373118566937
BaseRepresentation
bin110100011001010110…
…1110100110010101101
3101202102201021102100011
41220302231310302231
53320420111220323
6123405130333221
711062231262623
oct1506255646255
9352381242304
10112520023213
11437a068a924
121998288a211
13a7c261a1c0
145635b67513
152dd847b20d
hex1a32b74cad

112520023213 has 8 divisors (see below), whose sum is σ = 122835347768. Its totient is φ = 102441832704.

The previous prime is 112520023207. The next prime is 112520023223. The reversal of 112520023213 is 312320025211.

It can be written as a sum of positive squares in 4 ways, for example, as 216619524 + 112303403689 = 14718^2 + 335117^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-112520023213 is a prime.

It is a super-3 number, since 3×1125200232133 (a number of 34 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 (112520023223) 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, 59282520 + ... + 59284417.

It is an arithmetic number, because the mean of its divisors is an integer number (15354418471).

Almost surely, 2112520023213 is an apocalyptic number.

112520023213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

112520023213 is a deficient number, since it is larger than the sum of its proper divisors (10315324555).

112520023213 is a wasteful number, since it uses less digits than its factorization.

112520023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118567023.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 112520023213 its reverse (312320025211), we get a palindrome (424840048424).

The spelling of 112520023213 in words is "one hundred twelve billion, five hundred twenty million, twenty-three thousand, two hundred thirteen".

Divisors: 1 13 73 949 118566937 1541370181 8655386401 112520023213