Search a number
-
+
13123043037 = 341330114139
BaseRepresentation
bin11000011100011000…
…11011111011011101
31020212120022122210000
430032030123323131
5203333444334122
610010104204513
7643126011456
oct141614337335
936776278700
1013123043037
115624685515
122662a69739
131311a22a30
148c6c3812d
1551c1590ac
hex30e31bedd

13123043037 has 40 divisors (see below), whose sum is σ = 21123637920. Its totient is φ = 8071086240.

The previous prime is 13123043029. The next prime is 13123043057. The reversal of 13123043037 is 73034032131.

It is not a de Polignac number, because 13123043037 - 23 = 13123043029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13123043037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123043057) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3168514 + ... + 3172652.

It is an arithmetic number, because the mean of its divisors is an integer number (528090948).

Almost surely, 213123043037 is an apocalyptic number.

It is an amenable number.

13123043037 is a deficient number, since it is larger than the sum of its proper divisors (8000594883).

13123043037 is a wasteful number, since it uses less digits than its factorization.

13123043037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7175 (or 7166 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

Adding to 13123043037 its reverse (73034032131), we get a palindrome (86157075168).

The spelling of 13123043037 in words is "thirteen billion, one hundred twenty-three million, forty-three thousand, thirty-seven".

Divisors: 1 3 9 13 27 39 81 117 351 1053 3011 4139 9033 12417 27099 37251 39143 53807 81297 111753 117429 161421 243891 335259 352287 484263 1056861 1452789 3170583 4358367 12462529 37387587 112162761 162012877 336488283 486038631 1009464849 1458115893 4374347679 13123043037