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130445010 = 23251449389
BaseRepresentation
bin1111100011001…
…10111011010010
3100002110021220200
413301212323102
5231343220020
620535520030
73142523103
oct761467322
9302407820
10130445010
11676a62a3
1237829016
13210431c7
14134783aa
15b6ba590
hex7c66ed2

130445010 has 24 divisors (see below), whose sum is σ = 339157260. Its totient is φ = 34785312.

The previous prime is 130445009. The next prime is 130445057. The reversal of 130445010 is 10544031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 127712601 + 2732409 = 11301^2 + 1653^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 724605 + ... + 724784.

Almost surely, 2130445010 is an apocalyptic number.

130445010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130445010 is an abundant number, since it is smaller than the sum of its proper divisors (208712250).

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

130445010 is a wasteful number, since it uses less digits than its factorization.

130445010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449402 (or 1449399 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 130445010 is about 11421.2525582792. The cubic root of 130445010 is about 507.1570770141.

Adding to 130445010 its reverse (10544031), we get a palindrome (140989041).

The spelling of 130445010 in words is "one hundred thirty million, four hundred forty-five thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1449389 2898778 4348167 7246945 8696334 13044501 14493890 21740835 26089002 43481670 65222505 130445010