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31150270330 = 2531100484743
BaseRepresentation
bin11101000000101100…
…110110011101111010
32222101220201200121221
4131000230312131322
51002243432122310
622151002222254
72151634633444
oct350054663572
988356650557
1031150270330
1112235574173
1260541b498a
132c2579722a
141717111494
15c24adeada
hex740b3677a

31150270330 has 16 divisors (see below), whose sum is σ = 57879212544. Its totient is φ = 12058169040.

The previous prime is 31150270273. The next prime is 31150270367. The reversal of 31150270330 is 3307205113.

It is a junction number, because it is equal to n+sod(n) for n = 31150270295 and 31150270304.

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 7 ways as a sum of consecutive naturals, for example, 50242062 + ... + 50242681.

It is an arithmetic number, because the mean of its divisors is an integer number (3617450784).

Almost surely, 231150270330 is an apocalyptic number.

31150270330 is a deficient number, since it is larger than the sum of its proper divisors (26728942214).

31150270330 is a wasteful number, since it uses less digits than its factorization.

31150270330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100484781.

The product of its (nonzero) digits is 1890, while the sum is 25.

Adding to 31150270330 its reverse (3307205113), we get a palindrome (34457475443).

The spelling of 31150270330 in words is "thirty-one billion, one hundred fifty million, two hundred seventy thousand, three hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 100484743 200969486 502423715 1004847430 3115027033 6230054066 15575135165 31150270330