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130144140 = 223257103289
BaseRepresentation
bin1111100000111…
…01011110001100
3100001220000012100
413300131132030
5231304103030
620525235100
73140130660
oct760353614
9301800170
10130144140
1167510245
1237702a90
1320c69289
14133da8a0
15b65b360
hex7c1d78c

130144140 has 72 divisors (see below), whose sum is σ = 451170720. Its totient is φ = 29746944.

The previous prime is 130144123. The next prime is 130144193. The reversal of 130144140 is 41441031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50385 + ... + 52904.

It is an arithmetic number, because the mean of its divisors is an integer number (6266260).

Almost surely, 2130144140 is an apocalyptic number.

130144140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130144140 is an abundant number, since it is smaller than the sum of its proper divisors (321026580).

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

130144140 is a wasteful number, since it uses less digits than its factorization.

130144140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103311 (or 103306 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 130144140 is about 11408.0734569865. The cubic root of 130144140 is about 506.7668594178.

Adding to 130144140 its reverse (41441031), we get a palindrome (171585171).

The spelling of 130144140 in words is "one hundred thirty million, one hundred forty-four thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1260 103289 206578 309867 413156 516445 619734 723023 929601 1032890 1239468 1446046 1549335 1859202 2065780 2169069 2892092 3098670 3615115 3718404 4338138 4648005 6197340 6507207 7230230 8676276 9296010 10845345 13014414 14460460 18592020 21690690 26028828 32536035 43381380 65072070 130144140