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394030827 = 3243781203
BaseRepresentation
bin10111011111000…
…110111011101011
31000110102211200100
4113133012323223
51301332441302
6103033240443
712523130631
oct2737067353
91013384610
10394030827
11192469213
12abb63123
1363831648
143a48d351
15248d4d1c
hex177c6eeb

394030827 has 6 divisors (see below), whose sum is σ = 569155652. Its totient is φ = 262687212.

The previous prime is 394030807. The next prime is 394030831. The reversal of 394030827 is 728030493.

It is not a de Polignac number, because 394030827 - 27 = 394030699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 394030791 and 394030800.

It is not an unprimeable number, because it can be changed into a prime (394030807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21890593 + ... + 21890610.

Almost surely, 2394030827 is an apocalyptic number.

394030827 is a deficient number, since it is larger than the sum of its proper divisors (175124825).

394030827 is a wasteful number, since it uses less digits than its factorization.

394030827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43781209 (or 43781206 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 394030827 is about 19850.2097470027. The cubic root of 394030827 is about 733.1228121371.

The spelling of 394030827 in words is "three hundred ninety-four million, thirty thousand, eight hundred twenty-seven".

Divisors: 1 3 9 43781203 131343609 394030827