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305431114 = 21201127157
BaseRepresentation
bin10010001101001…
…000001001001010
3210021201111201111
4102031020021022
51111142243424
650150240534
710366056502
oct2215101112
9707644644
10305431114
11147453a0a
128635614a
134b37cb91
142c7c8a02
151bc33194
hex1234824a

305431114 has 8 divisors (see below), whose sum is σ = 458531748. Its totient is φ = 152587200.

The previous prime is 305431069. The next prime is 305431117. The reversal of 305431114 is 411134503.

It can be written as a sum of positive squares in 2 ways, for example, as 241958025 + 63473089 = 15555^2 + 7967^2 .

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

It is not an unprimeable number, because it can be changed into a prime (305431117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61177 + ... + 65980.

Almost surely, 2305431114 is an apocalyptic number.

305431114 is a deficient number, since it is larger than the sum of its proper divisors (153100634).

305431114 is a wasteful number, since it uses less digits than its factorization.

305431114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128360.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 305431114 is about 17476.5875959811. The cubic root of 305431114 is about 673.4485549860.

Adding to 305431114 its reverse (411134503), we get a palindrome (716565617).

The spelling of 305431114 in words is "three hundred five million, four hundred thirty-one thousand, one hundred fourteen".

Divisors: 1 2 1201 2402 127157 254314 152715557 305431114