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383825243 = 1621236783
BaseRepresentation
bin10110111000001…
…011010101011011
3222202020100020202
4112320023111123
51241224401433
6102030412415
712340314014
oct2670132533
9882210222
10383825243
1118772864a
12a866110b
136169a339
1438d9400b
1523a6aee8
hex16e0b55b

383825243 has 4 divisors (see below), whose sum is σ = 384063648. Its totient is φ = 383586840.

The previous prime is 383825191. The next prime is 383825257. The reversal of 383825243 is 342528383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342528383 = 761450103.

It is a cyclic number.

It is not a de Polignac number, because 383825243 - 216 = 383759707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 383825197 and 383825206.

It is not an unprimeable number, because it can be changed into a prime (383825293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116771 + ... + 120012.

It is an arithmetic number, because the mean of its divisors is an integer number (96015912).

Almost surely, 2383825243 is an apocalyptic number.

383825243 is a deficient number, since it is larger than the sum of its proper divisors (238405).

383825243 is a wasteful number, since it uses less digits than its factorization.

383825243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238404.

The product of its digits is 138240, while the sum is 38.

The square root of 383825243 is about 19591.4584194235. The cubic root of 383825243 is about 726.7379584078.

The spelling of 383825243 in words is "three hundred eighty-three million, eight hundred twenty-five thousand, two hundred forty-three".

Divisors: 1 1621 236783 383825243