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268051438 = 2157853667
BaseRepresentation
bin11111111101000…
…10001111101110
3200200101102110001
433332202033232
51022110121223
642333134514
76433254034
oct1776421756
9620342401
10268051438
11128343016
127592a43a
13436c2c25
1427858554
15187ec9ad
hexffa23ee

268051438 has 8 divisors (see below), whose sum is σ = 404638632. Its totient is φ = 133171896.

The previous prime is 268051403. The next prime is 268051439. The reversal of 268051438 is 834150862.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 268051397 and 268051406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268051439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426520 + ... + 427147.

It is an arithmetic number, because the mean of its divisors is an integer number (50579829).

Almost surely, 2268051438 is an apocalyptic number.

268051438 is a deficient number, since it is larger than the sum of its proper divisors (136587194).

268051438 is a wasteful number, since it uses less digits than its factorization.

268051438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853826.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 268051438 is about 16372.2765063384. The cubic root of 268051438 is about 644.7718184104.

The spelling of 268051438 in words is "two hundred sixty-eight million, fifty-one thousand, four hundred thirty-eight".

Divisors: 1 2 157 314 853667 1707334 134025719 268051438