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130502456 = 23747179277
BaseRepresentation
bin1111100011101…
…00111100111000
3100002120012201022
413301310330320
5231402034311
620541042012
73143152430
oct761647470
9302505638
10130502456
1167735477
1237856308
13210633b6
14134912c0
15b6cc5db
hex7c74f38

130502456 has 64 divisors (see below), whose sum is σ = 288230400. Its totient is φ = 54237312.

The previous prime is 130502419. The next prime is 130502459. The reversal of 130502456 is 654205031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130502459) 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, 470990 + ... + 471266.

It is an arithmetic number, because the mean of its divisors is an integer number (4503600).

Almost surely, 2130502456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130502456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144115200).

130502456 is an abundant number, since it is smaller than the sum of its proper divisors (157727944).

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

130502456 is a wasteful number, since it uses less digits than its factorization.

130502456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 130502456 is about 11423.7671544898. The cubic root of 130502456 is about 507.2315141780.

Adding to 130502456 its reverse (654205031), we get a palindrome (784707487).

The spelling of 130502456 in words is "one hundred thirty million, five hundred two thousand, four hundred fifty-six".

Divisors: 1 2 4 7 8 14 28 47 56 94 179 188 277 329 358 376 554 658 716 1108 1253 1316 1432 1939 2216 2506 2632 3878 5012 7756 8413 10024 13019 15512 16826 26038 33652 49583 52076 58891 67304 91133 99166 104152 117782 182266 198332 235564 347081 364532 396664 471128 694162 729064 1388324 2330401 2776648 4660802 9321604 16312807 18643208 32625614 65251228 130502456