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31350150205 = 5111609354259
BaseRepresentation
bin11101001100100111…
…010101010000111101
32222220211211122021021
4131030213111100331
51003201114301310
622222502304141
72156612610553
oct351447252075
988824748237
1031350150205
1112328384950
1260ab128051
132c5800b94a
1417358a1bd3
15c374235da
hex74c9d543d

31350150205 has 16 divisors (see below), whose sum is σ = 41065819200. Its totient is φ = 22785874560.

The previous prime is 31350150191. The next prime is 31350150269. The reversal of 31350150205 is 50205105313.

It is not a de Polignac number, because 31350150205 - 27 = 31350150077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31350150205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88635 + ... + 265624.

It is an arithmetic number, because the mean of its divisors is an integer number (2566613700).

Almost surely, 231350150205 is an apocalyptic number.

It is an amenable number.

31350150205 is a deficient number, since it is larger than the sum of its proper divisors (9715668995).

31350150205 is a wasteful number, since it uses less digits than its factorization.

31350150205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355884.

The product of its (nonzero) digits is 2250, while the sum is 25.

Adding to 31350150205 its reverse (50205105313), we get a palindrome (81555255518).

The spelling of 31350150205 in words is "thirty-one billion, three hundred fifty million, one hundred fifty thousand, two hundred five".

Divisors: 1 5 11 55 1609 8045 17699 88495 354259 1771295 3896849 19484245 570002731 2850013655 6270030041 31350150205