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271378994 = 2135689497
BaseRepresentation
bin10000001011001…
…110101000110010
3200220122110222212
4100023032220302
51023433111434
642532332122
76503453255
oct2013165062
9626573885
10271378994
1112a206067
1276a74042
13442b96b3
142808309c
1518c588ce
hex102cea32

271378994 has 4 divisors (see below), whose sum is σ = 407068494. Its totient is φ = 135689496.

The previous prime is 271378981. The next prime is 271378997. The reversal of 271378994 is 499873172.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 258019969 + 13359025 = 16063^2 + 3655^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (271378997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67844747 + ... + 67844750.

Almost surely, 2271378994 is an apocalyptic number.

271378994 is a deficient number, since it is larger than the sum of its proper divisors (135689500).

271378994 is a wasteful number, since it uses less digits than its factorization.

271378994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135689499.

The product of its digits is 762048, while the sum is 50.

The square root of 271378994 is about 16473.5847343558. The cubic root of 271378994 is about 647.4288917803.

The spelling of 271378994 in words is "two hundred seventy-one million, three hundred seventy-eight thousand, nine hundred ninety-four".

Divisors: 1 2 135689497 271378994