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13123042051 = 75335372081
BaseRepresentation
bin11000011100011000…
…11011101100000011
31020212120022121102111
430032030123230003
5203333444321201
610010104200151
7643126005550
oct141614335403
936776277374
1013123042051
1156246847a9
122662a69057
131311a22452
148c6c37a27
1551c158b51
hex30e31bb03

13123042051 has 8 divisors (see below), whose sum is σ = 15280739424. Its totient is φ = 11036088960.

The previous prime is 13123041947. The next prime is 13123042063. The reversal of 13123042051 is 15024032131.

It is a happy number.

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 13123042051 - 211 = 13123040003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123045051) 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, 17685670 + ... + 17686411.

It is an arithmetic number, because the mean of its divisors is an integer number (1910092428).

Almost surely, 213123042051 is an apocalyptic number.

13123042051 is a deficient number, since it is larger than the sum of its proper divisors (2157697373).

13123042051 is an equidigital number, since it uses as much as digits as its factorization.

13123042051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35372141.

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

Adding to 13123042051 its reverse (15024032131), we get a palindrome (28147074182).

The spelling of 13123042051 in words is "thirteen billion, one hundred twenty-three million, forty-two thousand, fifty-one".

Divisors: 1 7 53 371 35372081 247604567 1874720293 13123042051