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130207700 = 22527226573
BaseRepresentation
bin1111100001011…
…00111111010100
3100002000020101102
413300230333110
5231313121300
620530445232
73140514200
oct760547724
9302006342
10130207700
1167553a77
1237733818
1320c8c19c
1413415b00
15b6700d5
hex7c2cfd4

130207700 has 54 divisors (see below), whose sum is σ = 328693806. Its totient is φ = 44640960.

The previous prime is 130207633. The next prime is 130207717. The reversal of 130207700 is 7702031.

It can be written as a sum of positive squares in 3 ways, for example, as 45346756 + 84860944 = 6734^2 + 9212^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 8387 + ... + 18186.

Almost surely, 2130207700 is an apocalyptic number.

130207700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130207700 is an abundant number, since it is smaller than the sum of its proper divisors (198486106).

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

130207700 is a wasteful number, since it uses less digits than its factorization.

130207700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26601 (or 26587 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 130207700 is about 11410.8588633810. The cubic root of 130207700 is about 506.8493445234.

Adding to 130207700 its reverse (7702031), we get a palindrome (137909731).

The spelling of 130207700 in words is "one hundred thirty million, two hundred seven thousand, seven hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 140 175 196 245 350 490 700 980 1225 2450 4900 26573 53146 106292 132865 186011 265730 372022 531460 664325 744044 930055 1302077 1328650 1860110 2604154 2657300 3720220 4650275 5208308 6510385 9300550 13020770 18601100 26041540 32551925 65103850 130207700