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130172700 = 22352761987
BaseRepresentation
bin1111100001001…
…00011100011100
3100001221110101010
413300210130130
5231311011300
620530015220
73140310150
oct760443434
9301843333
10130172700
116752a749
1237717510
1320c79288
1413407060
15b664a50
hex7c2471c

130172700 has 72 divisors (see below), whose sum is σ = 430444672. Its totient is φ = 29753280.

The previous prime is 130172687. The next prime is 130172711. The reversal of 130172700 is 7271031.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 23 ways as a sum of consecutive naturals, for example, 28894 + ... + 33093.

Almost surely, 2130172700 is an apocalyptic number.

130172700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130172700 is an abundant number, since it is smaller than the sum of its proper divisors (300271972).

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

130172700 is a wasteful number, since it uses less digits than its factorization.

130172700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62011 (or 62004 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 130172700 is about 11409.3251334161. The cubic root of 130172700 is about 506.8039265315.

The spelling of 130172700 in words is "one hundred thirty million, one hundred seventy-two thousand, seven hundred".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 105 140 150 175 210 300 350 420 525 700 1050 2100 61987 123974 185961 247948 309935 371922 433909 619870 743844 867818 929805 1239740 1301727 1549675 1735636 1859610 2169545 2603454 3099350 3719220 4339090 4649025 5206908 6198700 6508635 8678180 9298050 10847725 13017270 18596100 21695450 26034540 32543175 43390900 65086350 130172700