Search a number
-
+
13450232052 = 2232373617557
BaseRepresentation
bin11001000011011001…
…00100000011110100
31021201100222120201200
430201230210003310
5210021224411202
610102353052500
7654211041345
oct144154440364
937640876650
1013450232052
11578233a464
122734557130
1313647501ba
149184880cc
1553ac38e1c
hex321b240f4

13450232052 has 18 divisors (see below), whose sum is σ = 33999197778. Its totient is φ = 4483410672.

The previous prime is 13450232051. The next prime is 13450232071. The reversal of 13450232052 is 25023205431.

It is a happy number.

13450232052 is a `hidden beast` number, since 1 + 3 + 450 + 2 + 3 + 205 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7557520356 + 5892711696 = 86934^2 + 76764^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13450232051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 186808743 + ... + 186808814.

It is an arithmetic number, because the mean of its divisors is an integer number (1888844321).

Almost surely, 213450232052 is an apocalyptic number.

13450232052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13450232052 is an abundant number, since it is smaller than the sum of its proper divisors (20548965726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13450232052 is a wasteful number, since it uses less digits than its factorization.

13450232052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373617567 (or 373617562 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 13450232052 its reverse (25023205431), we get a palindrome (38473437483).

The spelling of 13450232052 in words is "thirteen billion, four hundred fifty million, two hundred thirty-two thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 373617557 747235114 1120852671 1494470228 2241705342 3362558013 4483410684 6725116026 13450232052