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130772800 = 265237472
BaseRepresentation
bin1111100101101…
…10111101000000
3100010001221120001
413302312331000
5231434212200
620550525344
73145356544
oct762667500
9303057501
10130772800
11678aa5a4
1237966854
1321129472
1413521a24
15b73276a
hex7cb6f40

130772800 has 126 divisors (see below), whose sum is σ = 337660742. Its totient is φ = 49812480.

The previous prime is 130772797. The next prime is 130772827. The reversal of 130772800 is 8277031.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 27709696 + 103063104 = 5264^2 + 10152^2 .

It is a hoax number, since the sum of its digits (28) 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 17 ways as a sum of consecutive naturals, for example, 2782377 + ... + 2782423.

Almost surely, 2130772800 is an apocalyptic number.

130772800 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 130772800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168830371).

130772800 is an abundant number, since it is smaller than the sum of its proper divisors (206887942).

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

130772800 is an equidigital number, since it uses as much as digits as its factorization.

130772800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 130772800 is about 11435.5935569607. The cubic root of 130772800 is about 507.5815265339.

The spelling of 130772800 in words is "one hundred thirty million, seven hundred seventy-two thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 37 40 47 50 64 74 80 94 100 148 160 185 188 200 235 296 320 370 376 400 470 592 740 752 800 925 940 1175 1184 1480 1504 1600 1739 1850 1880 2209 2350 2368 2960 3008 3478 3700 3760 4418 4700 5920 6956 7400 7520 8695 8836 9400 11045 11840 13912 14800 15040 17390 17672 18800 22090 27824 29600 34780 35344 37600 43475 44180 55225 55648 59200 69560 70688 75200 81733 86950 88360 110450 111296 139120 141376 163466 173900 176720 220900 278240 326932 347800 353440 408665 441800 556480 653864 695600 706880 817330 883600 1307728 1391200 1634660 1767200 2043325 2615456 2782400 3269320 3534400 4086650 5230912 6538640 8173300 13077280 16346600 26154560 32693200 65386400 130772800