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394777041 = 31923992887
BaseRepresentation
bin10111100001111…
…101000111010001
31000111211202021220
4113201331013101
51302030331131
6103101235253
712532356321
oct2741750721
91014752256
10394777041
1119292891a
12b0262b29
1363a331a9
143a605281
15249d0e96
hex1787d1d1

394777041 has 16 divisors (see below), whose sum is σ = 554496000. Its totient is φ = 249142608.

The previous prime is 394777021. The next prime is 394777051. The reversal of 394777041 is 140777493.

It is not a de Polignac number, because 394777041 - 217 = 394645969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 394776984 and 394777002.

It is not an unprimeable number, because it can be changed into a prime (394777021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135300 + ... + 138186.

It is an arithmetic number, because the mean of its divisors is an integer number (34656000).

Almost surely, 2394777041 is an apocalyptic number.

It is an amenable number.

394777041 is a deficient number, since it is larger than the sum of its proper divisors (159718959).

394777041 is a wasteful number, since it uses less digits than its factorization.

394777041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5308.

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 394777041 is about 19868.9969802202. The cubic root of 394777041 is about 733.5853153115.

The spelling of 394777041 in words is "three hundred ninety-four million, seven hundred seventy-seven thousand, forty-one".

Divisors: 1 3 19 57 2399 2887 7197 8661 45581 54853 136743 164559 6925913 20777739 131592347 394777041