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42089340 = 2235701489
BaseRepresentation
bin1010000010001…
…1101101111100
32221012100201110
42200203231330
541233324330
64102042020
71020516306
oct240435574
987170643
1042089340
1121838387
1212119310
138948847
145838976
153a65db0
hex2823b7c

42089340 has 24 divisors (see below), whose sum is σ = 117850320. Its totient is φ = 11223808.

The previous prime is 42089323. The next prime is 42089347. The reversal of 42089340 is 4398024.

It is a happy number.

42089340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 42089298 and 42089307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42089347) 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, 350685 + ... + 350804.

It is an arithmetic number, because the mean of its divisors is an integer number (4910430).

Almost surely, 242089340 is an apocalyptic number.

It is an amenable number.

42089340 is an abundant number, since it is smaller than the sum of its proper divisors (75760980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42089340 is a wasteful number, since it uses less digits than its factorization.

42089340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701501 (or 701499 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 42089340 is about 6487.6297674883. The cubic root of 42089340 is about 347.8489567798.

The spelling of 42089340 in words is "forty-two million, eighty-nine thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 701489 1402978 2104467 2805956 3507445 4208934 7014890 8417868 10522335 14029780 21044670 42089340