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1868485963 = 17217950441
BaseRepresentation
bin110111101011110…
…1101010101001011
311211012212220212211
41233113231111023
512311313022323
6505224045551
764205603641
oct15727552513
94735786784
101868485963
11879791183
124419038b7
1323a14b6c6
1413a223191
15ae08570d
hex6f5ed54b

1868485963 has 8 divisors (see below), whose sum is σ = 1979344080. Its totient is φ = 1757733120.

The previous prime is 1868485933. The next prime is 1868485967. The reversal of 1868485963 is 3695848681.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1868485963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1868485898 and 1868485907.

It is not an unprimeable number, because it can be changed into a prime (1868485967) 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, 11823 + ... + 62263.

It is an arithmetic number, because the mean of its divisors is an integer number (247418010).

Almost surely, 21868485963 is an apocalyptic number.

1868485963 is a deficient number, since it is larger than the sum of its proper divisors (110858117).

1868485963 is a wasteful number, since it uses less digits than its factorization.

1868485963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52637.

The product of its digits is 9953280, while the sum is 58.

The square root of 1868485963 is about 43225.9871258020. The cubic root of 1868485963 is about 1231.6763805627.

The spelling of 1868485963 in words is "one billion, eight hundred sixty-eight million, four hundred eighty-five thousand, nine hundred sixty-three".

Divisors: 1 17 2179 37043 50441 857497 109910939 1868485963