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42850381 = 725723819
BaseRepresentation
bin1010001101110…
…1100001001101
32222122000200011
42203131201031
541432203011
64130233221
71030136140
oct243354115
988560604
1042850381
1122208142
1212425811
138b54072
145996057
153b66621
hex28dd84d

42850381 has 8 divisors (see below), whose sum is σ = 49164480. Its totient is φ = 36584448.

The previous prime is 42850373. The next prime is 42850393. The reversal of 42850381 is 18305824.

42850381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42850381 - 23 = 42850373 is a prime.

It is a super-2 number, since 2×428503812 = 3672310303690322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42851381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10111 + ... + 13708.

It is an arithmetic number, because the mean of its divisors is an integer number (6145560).

Almost surely, 242850381 is an apocalyptic number.

It is an amenable number.

42850381 is a deficient number, since it is larger than the sum of its proper divisors (6314099).

42850381 is a wasteful number, since it uses less digits than its factorization.

42850381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24083.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 42850381 is about 6546.0202413375. The cubic root of 42850381 is about 349.9329966976.

The spelling of 42850381 in words is "forty-two million, eight hundred fifty thousand, three hundred eighty-one".

Divisors: 1 7 257 1799 23819 166733 6121483 42850381