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30002122 = 248730803
BaseRepresentation
bin111001001110…
…0101111001010
32002110021011201
41302130233022
530140031442
62551014414
7513004513
oct162345712
962407151
1030002122
1115a32047
12a06a40a
1362a5c47
143dada0a
1529797b7
hex1c9cbca

30002122 has 8 divisors (see below), whose sum is σ = 45097056. Its totient is φ = 14969772.

The previous prime is 30002117. The next prime is 30002123. The reversal of 30002122 is 22120003.

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 = 30002099 and 30002108.

It is not an unprimeable number, because it can be changed into a prime (30002123) 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, 14428 + ... + 16375.

It is an arithmetic number, because the mean of its divisors is an integer number (5637132).

Almost surely, 230002122 is an apocalyptic number.

30002122 is a deficient number, since it is larger than the sum of its proper divisors (15094934).

30002122 is a wasteful number, since it uses less digits than its factorization.

30002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31292.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 30002122 is about 5477.4192828375. The cubic root of 30002122 is about 310.7305765864.

Adding to 30002122 its reverse (22120003), we get a palindrome (52122125).

The spelling of 30002122 in words is "thirty million, two thousand, one hundred twenty-two".

Divisors: 1 2 487 974 30803 61606 15001061 30002122