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30431314 = 261249437
BaseRepresentation
bin111010000010…
…1100001010010
32010021001220201
41310011201102
530242300224
63004125414
7516443014
oct164054122
963231821
1030431314
11161a5551
12a23686a
1363c63c4
1440821b4
152a11a44
hex1d05852

30431314 has 8 divisors (see below), whose sum is σ = 46395468. Its totient is φ = 14966160.

The previous prime is 30431299. The next prime is 30431321. The reversal of 30431314 is 41313403.

It can be written as a sum of positive squares in 2 ways, for example, as 19758025 + 10673289 = 4445^2 + 3267^2 .

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 = 30431291 and 30431300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124597 + ... + 124840.

Almost surely, 230431314 is an apocalyptic number.

30431314 is a deficient number, since it is larger than the sum of its proper divisors (15964154).

30431314 is a wasteful number, since it uses less digits than its factorization.

30431314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249500.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30431314 is about 5516.4584653562. The cubic root of 30431314 is about 312.2052739110.

Adding to 30431314 its reverse (41313403), we get a palindrome (71744717).

The spelling of 30431314 in words is "thirty million, four hundred thirty-one thousand, three hundred fourteen".

Divisors: 1 2 61 122 249437 498874 15215657 30431314