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268831382 = 2134415691
BaseRepresentation
bin10000000001100…
…000101010010110
3200201212001022212
4100001200222112
51022310101012
642401553422
76443012651
oct2001405226
9621761285
10268831382
11128825aa6
1276045872
1343906c31
14279bc898
1518903b22
hex10060a96

268831382 has 4 divisors (see below), whose sum is σ = 403247076. Its totient is φ = 134415690.

The previous prime is 268831379. The next prime is 268831393. The reversal of 268831382 is 283138862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 283138862 = 2141569431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67207844 + ... + 67207847.

It is an arithmetic number, because the mean of its divisors is an integer number (100811769).

Almost surely, 2268831382 is an apocalyptic number.

268831382 is a deficient number, since it is larger than the sum of its proper divisors (134415694).

268831382 is a wasteful number, since it uses less digits than its factorization.

268831382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134415693.

The product of its digits is 110592, while the sum is 41.

The square root of 268831382 is about 16396.0782506061. The cubic root of 268831382 is about 645.3965728183.

The spelling of 268831382 in words is "two hundred sixty-eight million, eight hundred thirty-one thousand, three hundred eighty-two".

Divisors: 1 2 134415691 268831382