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31421301 = 391111497
BaseRepresentation
bin111011111011…
…1001101110101
32012010100220220
41313313031311
531020440201
63041244553
7531035202
oct167671565
965110826
1031421301
111681131a
12a633759
136681bb2
14425cca9
152b5a036
hex1df7375

31421301 has 8 divisors (see below), whose sum is σ = 41944704. Its totient is φ = 20922720.

The previous prime is 31421279. The next prime is 31421309. The reversal of 31421301 is 10312413.

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

It is not a de Polignac number, because 31421301 - 214 = 31404917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31421309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3016 + ... + 8481.

It is an arithmetic number, because the mean of its divisors is an integer number (5243088).

Almost surely, 231421301 is an apocalyptic number.

It is an amenable number.

31421301 is a deficient number, since it is larger than the sum of its proper divisors (10523403).

31421301 is a wasteful number, since it uses less digits than its factorization.

31421301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12411.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 31421301 is about 5605.4706314457. The cubic root of 31421301 is about 315.5547493358.

Adding to 31421301 its reverse (10312413), we get a palindrome (41733714).

The spelling of 31421301 in words is "thirty-one million, four hundred twenty-one thousand, three hundred one".

Divisors: 1 3 911 2733 11497 34491 10473767 31421301