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271349945 = 5158334283
BaseRepresentation
bin10000001011000…
…111100010111001
3200220121000010222
4100023013202321
51023431144240
642531545425
76503302466
oct2013074271
9626530128
10271349945
1112a196259
1276a5b275
13442a93c9
142807666d
1518c4eeb5
hex102c78b9

271349945 has 8 divisors (see below), whose sum is σ = 325835136. Its totient is φ = 216936496.

The previous prime is 271349927. The next prime is 271349959. The reversal of 271349945 is 549943172.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 271349945 - 222 = 267155641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 271349896 and 271349905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9227 + ... + 25056.

It is an arithmetic number, because the mean of its divisors is an integer number (40729392).

Almost surely, 2271349945 is an apocalyptic number.

It is an amenable number.

271349945 is a deficient number, since it is larger than the sum of its proper divisors (54485191).

271349945 is a wasteful number, since it uses less digits than its factorization.

271349945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35871.

The product of its digits is 272160, while the sum is 44.

The square root of 271349945 is about 16472.7030265224. The cubic root of 271349945 is about 647.4057902219.

The spelling of 271349945 in words is "two hundred seventy-one million, three hundred forty-nine thousand, nine hundred forty-five".

Divisors: 1 5 1583 7915 34283 171415 54269989 271349945