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42401307 = 3136311723
BaseRepresentation
bin1010000110111…
…1111000011011
32221210012122210
42201233320123
541323320212
64112450203
71023255654
oct241577033
987705583
1042401307
1121a30803
1212249963
138a27840
1458ba52b
153ac853c
hex286fe1b

42401307 has 16 divisors (see below), whose sum is σ = 61015808. Its totient is φ = 26036640.

The previous prime is 42401269. The next prime is 42401309. The reversal of 42401307 is 70310424.

It is not a de Polignac number, because 42401307 - 26 = 42401243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42401309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23748 + ... + 25470.

It is an arithmetic number, because the mean of its divisors is an integer number (3813488).

Almost surely, 242401307 is an apocalyptic number.

42401307 is a deficient number, since it is larger than the sum of its proper divisors (18614501).

42401307 is a wasteful number, since it uses less digits than its factorization.

42401307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 42401307 is about 6511.6285981312. The cubic root of 42401307 is about 348.7062631911.

The spelling of 42401307 in words is "forty-two million, four hundred one thousand, three hundred seven".

Divisors: 1 3 13 39 631 1723 1893 5169 8203 22399 24609 67197 1087213 3261639 14133769 42401307