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384908345 = 5509151241
BaseRepresentation
bin10110111100010…
…011110000111001
3222211021100222122
4112330103300321
51242014031340
6102105531025
712352444523
oct2674236071
9884240878
10384908345
111882a8378
12a8aa3a75
1361989323
1439196a13
1523bd1db5
hex16f13c39

384908345 has 8 divisors (see below), whose sum is σ = 462800520. Its totient is φ = 307319680.

The previous prime is 384908317. The next prime is 384908371. The reversal of 384908345 is 543809483.

It can be written as a sum of positive squares in 4 ways, for example, as 29246464 + 355661881 = 5408^2 + 18859^2 .

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

It is not a de Polignac number, because 384908345 - 26 = 384908281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 384908296 and 384908305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73076 + ... + 78165.

It is an arithmetic number, because the mean of its divisors is an integer number (57850065).

Almost surely, 2384908345 is an apocalyptic number.

It is an amenable number.

384908345 is a deficient number, since it is larger than the sum of its proper divisors (77892175).

384908345 is a wasteful number, since it uses less digits than its factorization.

384908345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151755.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 384908345 is about 19619.0811456602. The cubic root of 384908345 is about 727.4209012461.

The spelling of 384908345 in words is "three hundred eighty-four million, nine hundred eight thousand, three hundred forty-five".

Divisors: 1 5 509 2545 151241 756205 76981669 384908345