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13123023033 = 389317155047
BaseRepresentation
bin11000011100011000…
…10111000010111001
31020212120021122100010
430032030113002321
5203333443214113
610010103532133
7643125566241
oct141614270271
936776248303
1013123023033
11562467148a
122662a5a049
131311a168b3
148c6c30b21
1551c1531c3
hex30e3170b9

13123023033 has 16 divisors (see below), whose sum is σ = 17749895040. Its totient is φ = 8623038336.

The previous prime is 13123023031. The next prime is 13123023041. The reversal of 13123023033 is 33032032131.

It is not a de Polignac number, because 13123023033 - 21 = 13123023031 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13123023031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7116 + ... + 162162.

It is an arithmetic number, because the mean of its divisors is an integer number (1109368440).

Almost surely, 213123023033 is an apocalyptic number.

It is an amenable number.

13123023033 is a deficient number, since it is larger than the sum of its proper divisors (4626872007).

13123023033 is a wasteful number, since it uses less digits than its factorization.

13123023033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155456.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 13123023033 its reverse (33032032131), we get a palindrome (46155055164).

The spelling of 13123023033 in words is "thirteen billion, one hundred twenty-three million, twenty-three thousand, thirty-three".

Divisors: 1 3 89 267 317 951 28213 84639 155047 465141 13799183 41397549 49149899 147449697 4374341011 13123023033