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130605042 = 2337588311
BaseRepresentation
bin1111100100011…
…01111111110010
3100002202102102210
413302031333302
5231413330132
620543152550
73144060501
oct762157762
9302672383
10130605042
11677a5557
12378a5756
132109acb9
14134ba838
15b6ecbcc
hex7c8dff2

130605042 has 16 divisors (see below), whose sum is σ = 268270272. Its totient is φ = 42358320.

The previous prime is 130605037. The next prime is 130605047. The reversal of 130605042 is 240506031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (130605037) and next prime (130605047).

It is not an unprimeable number, because it can be changed into a prime (130605047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293934 + ... + 294377.

It is an arithmetic number, because the mean of its divisors is an integer number (16766892).

Almost surely, 2130605042 is an apocalyptic number.

130605042 is an abundant number, since it is smaller than the sum of its proper divisors (137665230).

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

130605042 is a wasteful number, since it uses less digits than its factorization.

130605042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588353.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 130605042 is about 11428.2562974410. The cubic root of 130605042 is about 507.3643883656.

The spelling of 130605042 in words is "one hundred thirty million, six hundred five thousand, forty-two".

Divisors: 1 2 3 6 37 74 111 222 588311 1176622 1764933 3529866 21767507 43535014 65302521 130605042