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387200056 = 23431112297
BaseRepresentation
bin10111000101000…
…011010000111000
3222222120210121211
4113011003100320
51243110400211
6102231012504
712411101065
oct2705032070
9888523554
10387200056
11189623151
12a980a134
13622ac479
14395d1c6c
1523ed5e21
hex17143438

387200056 has 16 divisors (see below), whose sum is σ = 727691040. Its totient is φ = 193149120.

The previous prime is 387200027. The next prime is 387200059. The reversal of 387200056 is 650002783.

It is a super-3 number, since 3×3872000563 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387200059) 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, 52701 + ... + 59596.

It is an arithmetic number, because the mean of its divisors is an integer number (45480690).

Almost surely, 2387200056 is an apocalyptic number.

It is an amenable number.

387200056 is a deficient number, since it is larger than the sum of its proper divisors (340490984).

387200056 is a wasteful number, since it uses less digits than its factorization.

387200056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112734 (or 112730 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 387200056 is about 19677.3996249504. The cubic root of 387200056 is about 728.8617125763.

The spelling of 387200056 in words is "three hundred eighty-seven million, two hundred thousand, fifty-six".

Divisors: 1 2 4 8 431 862 1724 3448 112297 224594 449188 898376 48400007 96800014 193600028 387200056