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31423301 = 713345311
BaseRepresentation
bin111011111011…
…1101101000101
32012010110122222
41313313231011
531021021201
63041302125
7531044060
oct167675505
965113588
1031423301
1116812878
12a634945
136682a90
14425d8d7
152b5a91b
hex1df7b45

31423301 has 8 divisors (see below), whose sum is σ = 38674944. Its totient is φ = 24862320.

The previous prime is 31423297. The next prime is 31423331. The reversal of 31423301 is 10332413.

It is a happy number.

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

It is not a de Polignac number, because 31423301 - 22 = 31423297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31423301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31423331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172565 + ... + 172746.

It is an arithmetic number, because the mean of its divisors is an integer number (4834368).

Almost surely, 231423301 is an apocalyptic number.

It is an amenable number.

31423301 is a deficient number, since it is larger than the sum of its proper divisors (7251643).

31423301 is a wasteful number, since it uses less digits than its factorization.

31423301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345331.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 31423301 is about 5605.6490257596. The cubic root of 31423301 is about 315.5614443281.

Adding to 31423301 its reverse (10332413), we get a palindrome (41755714).

The spelling of 31423301 in words is "thirty-one million, four hundred twenty-three thousand, three hundred one".

Divisors: 1 7 13 91 345311 2417177 4489043 31423301