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31606134443 = 132172653991
BaseRepresentation
bin11101011011110111…
…110101011010101011
310000120200111222121222
4131123313311122223
51004212132300233
622304125052255
72166141465362
oct353367653253
9100520458558
1031606134443
1112449925674
1261609b708b
132c99068100
14175b8987d9
15c4eb3a898
hex75bdf56ab

31606134443 has 36 divisors (see below), whose sum is σ = 36448435008. Its totient is φ = 27389007360.

The previous prime is 31606134419. The next prime is 31606134449. The reversal of 31606134443 is 34443160613.

It is not a de Polignac number, because 31606134443 - 26 = 31606134379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31606134449) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 31892678 + ... + 31893668.

It is an arithmetic number, because the mean of its divisors is an integer number (1012456528).

Almost surely, 231606134443 is an apocalyptic number.

31606134443 is a deficient number, since it is larger than the sum of its proper divisors (4842300565).

31606134443 is a wasteful number, since it uses less digits than its factorization.

31606134443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704 (or 1674 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The spelling of 31606134443 in words is "thirty-one billion, six hundred six million, one hundred thirty-four thousand, four hundred forty-three".

Divisors: 1 13 17 169 221 289 653 991 2873 3757 8489 11101 12883 16847 48841 110357 144313 167479 188717 219011 286399 647123 1876069 2453321 2847143 3723187 8412599 11001091 31893173 48401431 109363787 143014183 187018547 1859184379 2431241111 31606134443