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130485492 = 2234521773
BaseRepresentation
bin1111100011100…
…00110011110100
3100002112100110000
413301300303310
5231401013432
620540431300
73143052114
oct761606364
9302470400
10130485492
1167723755
1237848530
1321058767
1413489044
15b6c757c
hex7c70cf4

130485492 has 60 divisors (see below), whose sum is σ = 342211716. Its totient is φ = 43355520.

The previous prime is 130485473. The next prime is 130485503. The reversal of 130485492 is 294584031.

130485492 is a `hidden beast` number, since 130 + 485 + 49 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20738916 + 109746576 = 4554^2 + 10476^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 168418 + ... + 169190.

Almost surely, 2130485492 is an apocalyptic number.

130485492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130485492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171105858).

130485492 is an abundant number, since it is smaller than the sum of its proper divisors (211726224).

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

130485492 is a wasteful number, since it uses less digits than its factorization.

130485492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 130485492 is about 11423.0246432370. The cubic root of 130485492 is about 507.2095349025.

The spelling of 130485492 in words is "one hundred thirty million, four hundred eighty-five thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 521 773 1042 1546 1563 2084 2319 3092 3126 4638 4689 6252 6957 9276 9378 13914 14067 18756 20871 27828 28134 41742 42201 56268 62613 83484 84402 125226 168804 250452 402733 805466 1208199 1610932 2416398 3624597 4832796 7249194 10873791 14498388 21747582 32621373 43495164 65242746 130485492