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13020542341 = 94311380611
BaseRepresentation
bin11000010000001010…
…11011010110000101
31020121102110002020221
430020011123112011
5203131224323331
65552003224341
7640442532562
oct141005332605
936542402227
1013020542341
1155818361a4
1226346780b1
1312c6714c31
148b7395869
1551315d711
hex30815b585

13020542341 has 4 divisors (see below), whose sum is σ = 13021932384. Its totient is φ = 13019152300.

The previous prime is 13020542329. The next prime is 13020542371. The reversal of 13020542341 is 14324502031.

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: 14324502031 = 72046357433.

It is a cyclic number.

It is not a de Polignac number, because 13020542341 - 25 = 13020542309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020542371) 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, 680875 + ... + 699736.

It is an arithmetic number, because the mean of its divisors is an integer number (3255483096).

Almost surely, 213020542341 is an apocalyptic number.

It is an amenable number.

13020542341 is a deficient number, since it is larger than the sum of its proper divisors (1390043).

13020542341 is an equidigital number, since it uses as much as digits as its factorization.

13020542341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390042.

The product of its (nonzero) digits is 2880, while the sum is 25.

The spelling of 13020542341 in words is "thirteen billion, twenty million, five hundred forty-two thousand, three hundred forty-one".

Divisors: 1 9431 1380611 13020542341