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1868683354 = 26857136261
BaseRepresentation
bin110111101100001…
…1101100001011010
311211020020221122121
41233120131201122
512311340331404
6505232211454
764210355266
oct15730354132
94736227577
101868683354
1187990650a
12441999b8a
1323a1ba4c5
1413a2750a6
15ae0c3e54
hex6f61d85a

1868683354 has 8 divisors (see below), whose sum is σ = 2803454388. Its totient is φ = 934198560.

The previous prime is 1868683319. The next prime is 1868683357. The reversal of 1868683354 is 4533868681.

It can be written as a sum of positive squares in 2 ways, for example, as 1868227729 + 455625 = 43223^2 + 675^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1868683357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54417 + ... + 81844.

Almost surely, 21868683354 is an apocalyptic number.

1868683354 is a deficient number, since it is larger than the sum of its proper divisors (934771034).

1868683354 is a wasteful number, since it uses less digits than its factorization.

1868683354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143120.

The product of its digits is 3317760, while the sum is 52.

The square root of 1868683354 is about 43228.2703100645. The cubic root of 1868683354 is about 1231.7197513767.

The spelling of 1868683354 in words is "one billion, eight hundred sixty-eight million, six hundred eighty-three thousand, three hundred fifty-four".

Divisors: 1 2 6857 13714 136261 272522 934341677 1868683354