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30103122 = 237716741
BaseRepresentation
bin111001011010…
…1011001010010
32002122101201110
41302311121102
530201244442
62553114150
7513605130
oct162653122
962571643
1030103122
1115aa0a15
12a0b8956
13630cbca
143dd8750
15299969c
hex1cb5652

30103122 has 16 divisors (see below), whose sum is σ = 68807232. Its totient is φ = 8600880.

The previous prime is 30103111. The next prime is 30103123. The reversal of 30103122 is 22130103.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30103098 and 30103107.

It is not an unprimeable number, because it can be changed into a prime (30103123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358329 + ... + 358412.

It is an arithmetic number, because the mean of its divisors is an integer number (4300452).

Almost surely, 230103122 is an apocalyptic number.

30103122 is an abundant number, since it is smaller than the sum of its proper divisors (38704110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30103122 is a wasteful number, since it uses less digits than its factorization.

30103122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716753.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30103122 is about 5486.6312068518. The cubic root of 30103122 is about 311.0788701378.

Adding to 30103122 its reverse (22130103), we get a palindrome (52233225).

The spelling of 30103122 in words is "thirty million, one hundred three thousand, one hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 716741 1433482 2150223 4300446 5017187 10034374 15051561 30103122