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30119039 = 137219847
BaseRepresentation
bin111001011100…
…1010001111111
32002200012112222
41302321101333
530202302124
62553315555
7514002416
oct162712177
962605488
1030119039
1116001975
12a105bbb
136317222
14400047d
15299e25e
hex1cb947f

30119039 has 4 divisors (see below), whose sum is σ = 30339024. Its totient is φ = 29899056.

The previous prime is 30119027. The next prime is 30119059. The reversal of 30119039 is 93091103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30119039 - 28 = 30118783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30118999 and 30119017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30119059) 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, 109787 + ... + 110060.

It is an arithmetic number, because the mean of its divisors is an integer number (7584756).

Almost surely, 230119039 is an apocalyptic number.

30119039 is a deficient number, since it is larger than the sum of its proper divisors (219985).

30119039 is a wasteful number, since it uses less digits than its factorization.

30119039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219984.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 30119039 is about 5488.0815409394. The cubic root of 30119039 is about 311.1336880394.

The spelling of 30119039 in words is "thirty million, one hundred nineteen thousand, thirty-nine".

Divisors: 1 137 219847 30119039