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1313241986 = 27711321169
BaseRepresentation
bin100111001000110…
…0111101110000010
310101112002121100002
41032101213232002
510142142220421
6334151200002
744354241560
oct11621475602
93345077302
101313241986
11614322161
12307976002
1317c0c3384
14c65aaa30
157a458b0b
hex4e467b82

1313241986 has 16 divisors (see below), whose sum is σ = 2282981760. Its totient is φ = 554890560.

The previous prime is 1313241983. The next prime is 1313241997. The reversal of 1313241986 is 6891423131.

It is not an unprimeable number, because it can be changed into a prime (1313241983) 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, 659591 + ... + 661578.

It is an arithmetic number, because the mean of its divisors is an integer number (142686360).

Almost surely, 21313241986 is an apocalyptic number.

1313241986 is a deficient number, since it is larger than the sum of its proper divisors (969739774).

1313241986 is a wasteful number, since it uses less digits than its factorization.

1313241986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321249.

The product of its digits is 31104, while the sum is 38.

The square root of 1313241986 is about 36238.6807982851. The cubic root of 1313241986 is about 1095.0860662249.

The spelling of 1313241986 in words is "one billion, three hundred thirteen million, two hundred forty-one thousand, nine hundred eighty-six".

Divisors: 1 2 7 14 71 142 497 994 1321169 2642338 9248183 18496366 93802999 187605998 656620993 1313241986