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130323544 = 23131253111
BaseRepresentation
bin1111100010010…
…01010001011000
3100002020010021221
413301021101120
5231330323134
620533141424
73141506011
oct761112130
9302203257
10130323544
116762300a
123778a874
1320cccb30
1413446008
15b6945b4
hex7c49458

130323544 has 16 divisors (see below), whose sum is σ = 263153520. Its totient is φ = 60149280.

The previous prime is 130323541. The next prime is 130323551. The reversal of 130323544 is 445323031.

It is a super-3 number, since 3×1303235443 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130323541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626452 + ... + 626659.

It is an arithmetic number, because the mean of its divisors is an integer number (16447095).

Almost surely, 2130323544 is an apocalyptic number.

It is an amenable number.

130323544 is an abundant number, since it is smaller than the sum of its proper divisors (132829976).

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

130323544 is a wasteful number, since it uses less digits than its factorization.

130323544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253130 (or 1253126 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 130323544 is about 11415.9337769628. The cubic root of 130323544 is about 506.9996122656. Note that the first 3 decimals are identical.

Adding to 130323544 its reverse (445323031), we get a palindrome (575646575).

The spelling of 130323544 in words is "one hundred thirty million, three hundred twenty-three thousand, five hundred forty-four".

Divisors: 1 2 4 8 13 26 52 104 1253111 2506222 5012444 10024888 16290443 32580886 65161772 130323544