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30068445 = 3511182233
BaseRepresentation
bin111001010110…
…0111011011101
32002120122011010
41302230323131
530144142240
62552245433
7513402051
oct162547335
962518133
1030068445
1115a77960
12a0a0879
1362ca1a4
143dc9c61
15298e280
hex1cacedd

30068445 has 16 divisors (see below), whose sum is σ = 52483392. Its totient is φ = 14578560.

The previous prime is 30068411. The next prime is 30068449. The reversal of 30068445 is 54486003.

It is not a de Polignac number, because 30068445 - 211 = 30066397 is a prime.

It is a super-2 number, since 2×300684452 = 1808222769436050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30068449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90952 + ... + 91281.

It is an arithmetic number, because the mean of its divisors is an integer number (3280212).

Almost surely, 230068445 is an apocalyptic number.

It is an amenable number.

30068445 is a deficient number, since it is larger than the sum of its proper divisors (22414947).

30068445 is a wasteful number, since it uses less digits than its factorization.

30068445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182252.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 30068445 is about 5483.4701604003. The cubic root of 30068445 is about 310.9593761449.

The spelling of 30068445 in words is "thirty million, sixty-eight thousand, four hundred forty-five".

Divisors: 1 3 5 11 15 33 55 165 182233 546699 911165 2004563 2733495 6013689 10022815 30068445