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389920348 = 22160160887
BaseRepresentation
bin10111001111011…
…011011001011100
31000011201000011101
4113033123121130
51244304422343
6102405202444
712443161006
oct2717333134
91004630141
10389920348
11190110a24
12aa700424
1362a226cc
1439add376
1524371e4d
hex173db65c

389920348 has 12 divisors (see below), whose sum is σ = 682798032. Its totient is φ = 194835200.

The previous prime is 389920331. The next prime is 389920351. The reversal of 389920348 is 843029983.

It is a super-2 number, since 2×3899203482 = 304075755568882208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 389920298 and 389920307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24040 + ... + 36847.

It is an arithmetic number, because the mean of its divisors is an integer number (56899836).

Almost surely, 2389920348 is an apocalyptic number.

It is an amenable number.

389920348 is a deficient number, since it is larger than the sum of its proper divisors (292877684).

389920348 is a wasteful number, since it uses less digits than its factorization.

389920348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62492 (or 62490 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 389920348 is about 19746.4008872503. The cubic root of 389920348 is about 730.5646147934.

The spelling of 389920348 in words is "three hundred eighty-nine million, nine hundred twenty thousand, three hundred forty-eight".

Divisors: 1 2 4 1601 3202 6404 60887 121774 243548 97480087 194960174 389920348