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382970845 = 5531445173
BaseRepresentation
bin10110110100111…
…010101111011101
3222200121221020101
4112310322233131
51241020031340
6102000221101
712330125035
oct2664725735
9880557211
10382970845
111871a4734
12a830a791
136145b48a
1438c108c5
152394cc9a
hex16d3abdd

382970845 has 8 divisors (see below), whose sum is σ = 468236376. Its totient is φ = 300595776.

The previous prime is 382970843. The next prime is 382970851. The reversal of 382970845 is 548079283.

It can be written as a sum of positive squares in 4 ways, for example, as 28100601 + 354870244 = 5301^2 + 18838^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 382970845 - 21 = 382970843 is a prime.

It is a super-4 number, since 4×3829708454 (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 382970795 and 382970804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382970843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722322 + ... + 722851.

It is an arithmetic number, because the mean of its divisors is an integer number (58529547).

Almost surely, 2382970845 is an apocalyptic number.

It is an amenable number.

382970845 is a deficient number, since it is larger than the sum of its proper divisors (85265531).

382970845 is a wasteful number, since it uses less digits than its factorization.

382970845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445231.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 382970845 is about 19569.6409011509. The cubic root of 382970845 is about 726.1983163294.

The spelling of 382970845 in words is "three hundred eighty-two million, nine hundred seventy thousand, eight hundred forty-five".

Divisors: 1 5 53 265 1445173 7225865 76594169 382970845