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130386400 = 2552349467
BaseRepresentation
bin1111100010110…
…00100111100000
3100002100022111221
413301120213200
5231334331100
620534344424
73142160164
oct761304740
9302308457
10130386400
1167666261
12377bb114
1321022621
1413460ca4
15b6a801a
hex7c589e0

130386400 has 72 divisors (see below), whose sum is σ = 319901400. Its totient is φ = 51893760.

The previous prime is 130386397. The next prime is 130386433. The reversal of 130386400 is 4683031.

It is a super-2 number, since 2×1303864002 = 34001226609920000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278967 + ... + 279433.

It is an arithmetic number, because the mean of its divisors is an integer number (4443075).

Almost surely, 2130386400 is an apocalyptic number.

130386400 is a gapful number since it is divisible by the number (10) 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 130386400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159950700).

130386400 is an abundant number, since it is smaller than the sum of its proper divisors (189515000).

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

130386400 is a wasteful number, since it uses less digits than its factorization.

130386400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 130386400 is about 11418.6864393414. The cubic root of 130386400 is about 507.0811090406.

The spelling of 130386400 in words is "one hundred thirty million, three hundred eighty-six thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 349 400 467 698 800 934 1396 1745 1868 2335 2792 3490 3736 4670 5584 6980 7472 8725 9340 11168 11675 13960 14944 17450 18680 23350 27920 34900 37360 46700 55840 69800 74720 93400 139600 162983 186800 279200 325966 373600 651932 814915 1303864 1629830 2607728 3259660 4074575 5215456 6519320 8149150 13038640 16298300 26077280 32596600 65193200 130386400