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271222172 = 22135215811
BaseRepresentation
bin10000001010101…
…000010110011100
3200220100111212122
4100022220112130
51023413102142
642525122112
76502231124
oct2012502634
9626314778
10271222172
1112a109261
12769b9338
13442631c0
1428041c84
1518c271d2
hex102a859c

271222172 has 12 divisors (see below), whose sum is σ = 511149576. Its totient is φ = 125179440.

The previous prime is 271222157. The next prime is 271222213.

271222172 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2712221722 = 147122933168795168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2607854 + ... + 2607957.

It is an arithmetic number, because the mean of its divisors is an integer number (42595798).

Almost surely, 2271222172 is an apocalyptic number.

It is an amenable number.

271222172 is a deficient number, since it is larger than the sum of its proper divisors (239927404).

271222172 is a wasteful number, since it uses less digits than its factorization.

271222172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5215828 (or 5215826 counting only the distinct ones).

The product of its digits is 1568, while the sum is 26.

The square root of 271222172 is about 16468.8242446144. The cubic root of 271222172 is about 647.3041576637.

The spelling of 271222172 in words is "two hundred seventy-one million, two hundred twenty-two thousand, one hundred seventy-two".

Divisors: 1 2 4 13 26 52 5215811 10431622 20863244 67805543 135611086 271222172