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378854853 = 3139714227
BaseRepresentation
bin10110100101001…
…101110111000101
3222101212211011020
4112211031313011
51233441323403
6101332101353
712250133046
oct2645156705
9871784136
10378854853
11184943293
12a6a64859
1360649b90
143845c8cd
15233d8453
hex1694ddc5

378854853 has 8 divisors (see below), whose sum is σ = 543996768. Its totient is φ = 233141424.

The previous prime is 378854821. The next prime is 378854863. The reversal of 378854853 is 358458873.

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

It is not a de Polignac number, because 378854853 - 25 = 378854821 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 378854796 and 378854805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378854863) 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, 4857075 + ... + 4857152.

It is an arithmetic number, because the mean of its divisors is an integer number (67999596).

Almost surely, 2378854853 is an apocalyptic number.

It is an amenable number.

378854853 is a deficient number, since it is larger than the sum of its proper divisors (165141915).

378854853 is a wasteful number, since it uses less digits than its factorization.

378854853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9714243.

The product of its digits is 3225600, while the sum is 51.

The square root of 378854853 is about 19464.1941266521. The cubic root of 378854853 is about 723.5873263813.

The spelling of 378854853 in words is "three hundred seventy-eight million, eight hundred fifty-four thousand, eight hundred fifty-three".

Divisors: 1 3 13 39 9714227 29142681 126284951 378854853