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31030030301 = 1733137572
BaseRepresentation
bin11100111001100010…
…001010111111011101
32222002112110212022112
4130321202022333131
51002022141432201
622131025123405
72145644622434
oct347142127735
988075425275
1031030030301
1112183709046
12601ba89565
132c068b7c9a
14170517211b
15c1928d0bb
hex73988afdd

31030030301 has 12 divisors (see below), whose sum is σ = 31350519252. Its totient is φ = 30711477888.

The previous prime is 31030030277. The next prime is 31030030307. The reversal of 31030030301 is 10303003013.

It can be written as a sum of positive squares in 6 ways, for example, as 1207801 + 31028822500 = 1099^2 + 176150^2 .

It is not a de Polignac number, because 31030030301 - 26 = 31030030237 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 (31030030307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40990415 + ... + 40991171.

It is an arithmetic number, because the mean of its divisors is an integer number (2612543271).

Almost surely, 231030030301 is an apocalyptic number.

It is an amenable number.

31030030301 is a deficient number, since it is larger than the sum of its proper divisors (320488951).

31030030301 is an frugal number, since it uses more digits than its factorization.

31030030301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 14.

Adding to 31030030301 its reverse (10303003013), we get a palindrome (41333033314).

The spelling of 31030030301 in words is "thirty-one billion, thirty million, thirty thousand, three hundred one".

Divisors: 1 173 313 757 54149 130961 236941 573049 40990793 99137477 179364337 31030030301