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31231140301 = 372710731139
BaseRepresentation
bin11101000101100001…
…010110000111001101
32222121112220022101001
4131011201112013031
51002430132442201
622203011420301
72153636212114
oct350541260715
988545808331
1031231140301
1112277189a59
1260772b4691
132c3947059a
141723b62c7b
15c2bc66301
hex7458561cd

31231140301 has 8 divisors (see below), whose sum is σ = 32077438560. Its totient is φ = 30384958608.

The previous prime is 31231140293. The next prime is 31231140319. The reversal of 31231140301 is 10304113213.

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 31231140301 - 23 = 31231140293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31231140331) 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, 987390 + ... + 1018528.

It is an arithmetic number, because the mean of its divisors is an integer number (4009679820).

Almost surely, 231231140301 is an apocalyptic number.

It is an amenable number.

31231140301 is a deficient number, since it is larger than the sum of its proper divisors (846298259).

31231140301 is a wasteful number, since it uses less digits than its factorization.

31231140301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58283.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31231140301 its reverse (10304113213), we get a palindrome (41535253514).

The spelling of 31231140301 in words is "thirty-one billion, two hundred thirty-one million, one hundred forty thousand, three hundred one".

Divisors: 1 37 27107 31139 1002959 1152143 844084873 31231140301