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31144214310 = 2351194376407
BaseRepresentation
bin11101000000010101…
…101111111100100110
32222101111100000022220
4131000111233330212
51002240404324220
622150224333210
72151532311426
oct350025577446
988344300286
1031144214310
11122321081a0
126052174206
132c244568a1
1417163b6486
15c242e5540
hex74056ff26

31144214310 has 32 divisors (see below), whose sum is σ = 81541216512. Its totient is φ = 7550112480.

The previous prime is 31144214291. The next prime is 31144214327. The reversal of 31144214310 is 1341244113.

It is a super-2 number, since 2×311442143102 (a number of 22 digits) contains 22 as substring.

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, 47187874 + ... + 47188533.

It is an arithmetic number, because the mean of its divisors is an integer number (2548163016).

Almost surely, 231144214310 is an apocalyptic number.

31144214310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31144214310 is an abundant number, since it is smaller than the sum of its proper divisors (50397002202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31144214310 is a wasteful number, since it uses less digits than its factorization.

31144214310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94376428.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 31144214310 its reverse (1341244113), we get a palindrome (32485458423).

The spelling of 31144214310 in words is "thirty-one billion, one hundred forty-four million, two hundred fourteen thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 94376407 188752814 283129221 471882035 566258442 943764070 1038140477 1415646105 2076280954 2831292210 3114421431 5190702385 6228842862 10381404770 15572107155 31144214310