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130761538 = 2431520483
BaseRepresentation
bin1111100101101…
…00001101000010
3100010001101002221
413302310031002
5231433332123
620550401254
73145311655
oct762641502
9303041087
10130761538
11678a2096
123796022a
13211242bb
141351b89c
15b72e25d
hex7cb4342

130761538 has 8 divisors (see below), whose sum is σ = 200703888. Its totient is φ = 63860244.

The previous prime is 130761479. The next prime is 130761541. The reversal of 130761538 is 835167031.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 760156 + ... + 760327.

It is an arithmetic number, because the mean of its divisors is an integer number (25087986).

Almost surely, 2130761538 is an apocalyptic number.

130761538 is a deficient number, since it is larger than the sum of its proper divisors (69942350).

130761538 is a wasteful number, since it uses less digits than its factorization.

130761538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520528.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 130761538 is about 11435.1011364133. The cubic root of 130761538 is about 507.5669553406.

The spelling of 130761538 in words is "one hundred thirty million, seven hundred sixty-one thousand, five hundred thirty-eight".

Divisors: 1 2 43 86 1520483 3040966 65380769 130761538