Search a number
-
+
13490856272 = 24312877397
BaseRepresentation
bin11001001000001111…
…00010000101010000
31021211012102111200102
430210013202011100
5210112124400042
610110403511532
7655213246325
oct144407420520
937735374612
1013490856272
1157a3266aa3
1227460885a8
13136cca4bba
1491da20b4c
1553e5b0b32
hex3241e2150

13490856272 has 30 divisors (see below), whose sum is σ = 27008942634. Its totient is φ = 6527826240.

The previous prime is 13490856259. The next prime is 13490856293. The reversal of 13490856272 is 27265809431.

It can be written as a sum of positive squares in only one way, i.e., 13413345856 + 77510416 = 115816^2 + 8804^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 423323 + ... + 454074.

It is a 1-persistent number, because it is pandigital, but 2⋅13490856272 = 26981712544 is not.

Almost surely, 213490856272 is an apocalyptic number.

It is an amenable number.

13490856272 is an abundant number, since it is smaller than the sum of its proper divisors (13518086362).

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

13490856272 is an equidigital number, since it uses as much as digits as its factorization.

13490856272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877467 (or 877430 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 13490856272 in words is "thirteen billion, four hundred ninety million, eight hundred fifty-six thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 31 62 124 248 496 961 1922 3844 7688 15376 877397 1754794 3509588 7019176 14038352 27199307 54398614 108797228 217594456 435188912 843178517 1686357034 3372714068 6745428136 13490856272