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1913134508 = 221728134331
BaseRepresentation
bin111001000001000…
…0001110110101100
311221022220022011122
41302002001312230
512404230301013
6513501040112
765260242425
oct16202016654
94838808148
101913134508
118a1a072aa
12454856038
1324648206c
1414212664c
15b2e54a08
hex72081dac

1913134508 has 12 divisors (see below), whose sum is σ = 3544925832. Its totient is φ = 900298560.

The previous prime is 1913134507. The next prime is 1913134519. The reversal of 1913134508 is 8054313191.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1913134507) by changing a digit.

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, 14067098 + ... + 14067233.

It is an arithmetic number, because the mean of its divisors is an integer number (295410486).

Almost surely, 21913134508 is an apocalyptic number.

It is an amenable number.

1913134508 is a deficient number, since it is larger than the sum of its proper divisors (1631791324).

1913134508 is a wasteful number, since it uses less digits than its factorization.

1913134508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28134352 (or 28134350 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1913134508 is about 43739.3930913542. The cubic root of 1913134508 is about 1241.4097969987.

Adding to 1913134508 its reverse (8054313191), we get a palindrome (9967447699).

The spelling of 1913134508 in words is "one billion, nine hundred thirteen million, one hundred thirty-four thousand, five hundred eight".

Divisors: 1 2 4 17 34 68 28134331 56268662 112537324 478283627 956567254 1913134508