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30839434 = 273211229
BaseRepresentation
bin111010110100…
…1001010001010
32011000210202021
41311221022022
530343330214
63020555054
7523062613
oct165511212
964023667
1030839434
111645413a
12a3b2a8a
13650a0b2
14414ac0a
152a92924
hex1d6928a

30839434 has 8 divisors (see below), whose sum is σ = 46893060. Its totient is φ = 15208416.

The previous prime is 30839429. The next prime is 30839461. The reversal of 30839434 is 43493803.

It can be written as a sum of positive squares in 2 ways, for example, as 30769209 + 70225 = 5547^2 + 265^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 30839434.

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, 105469 + ... + 105760.

Almost surely, 230839434 is an apocalyptic number.

30839434 is a deficient number, since it is larger than the sum of its proper divisors (16053626).

30839434 is a wasteful number, since it uses less digits than its factorization.

30839434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211304.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 30839434 is about 5553.3263905519. The cubic root of 30839434 is about 313.5947616980.

The spelling of 30839434 in words is "thirty million, eight hundred thirty-nine thousand, four hundred thirty-four".

Divisors: 1 2 73 146 211229 422458 15419717 30839434