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42380384 = 251324387
BaseRepresentation
bin1010000110101…
…0110001100000
32221202010221212
42201222301200
541322133014
64112205252
71023140654
oct241526140
987663855
1042380384
1121a17012
1212239828
138a1b167
1458b2a64
153ac223e
hex286ac60

42380384 has 12 divisors (see below), whose sum is σ = 83436444. Its totient is φ = 21190176.

The previous prime is 42380363. The next prime is 42380411. The reversal of 42380384 is 48308324.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1324387 = 42380384 / (4 + 2 + 3 + 8 + 0 + 3 + 8 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 42380384.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662162 + ... + 662225.

It is an arithmetic number, because the mean of its divisors is an integer number (6953037).

Almost surely, 242380384 is an apocalyptic number.

It is an amenable number.

42380384 is a deficient number, since it is larger than the sum of its proper divisors (41056060).

42380384 is a wasteful number, since it uses less digits than its factorization.

42380384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324397 (or 1324389 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 42380384 is about 6510.0218125595. The cubic root of 42380384 is about 348.6488971800.

The spelling of 42380384 in words is "forty-two million, three hundred eighty thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 32 1324387 2648774 5297548 10595096 21190192 42380384