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130212044 = 22171914883
BaseRepresentation
bin1111100001011…
…10000011001100
3100002000110100022
413300232003030
5231313241134
620530521312
73140532644
oct760560314
9302013308
10130212044
1167557266
1237736238
1320c91161
1413417524
15b67152e
hex7c2e0cc

130212044 has 12 divisors (see below), whose sum is σ = 241275384. Its totient is φ = 61276224.

The previous prime is 130212013. The next prime is 130212067. The reversal of 130212044 is 440212031.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 3 ways as a sum of consecutive naturals, for example, 957374 + ... + 957509.

It is an arithmetic number, because the mean of its divisors is an integer number (20106282).

Almost surely, 2130212044 is an apocalyptic number.

It is an amenable number.

130212044 is a deficient number, since it is larger than the sum of its proper divisors (111063340).

130212044 is a wasteful number, since it uses less digits than its factorization.

130212044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914904 (or 1914902 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 130212044 is about 11411.0492067995. The cubic root of 130212044 is about 506.8549809772.

Adding to 130212044 its reverse (440212031), we get a palindrome (570424075).

The spelling of 130212044 in words is "one hundred thirty million, two hundred twelve thousand, forty-four".

Divisors: 1 2 4 17 34 68 1914883 3829766 7659532 32553011 65106022 130212044