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30084123 = 310028041
BaseRepresentation
bin111001011000…
…0110000011011
32002121102122210
41302300300123
530200142443
62552450203
7513465546
oct162606033
962542583
1030084123
1115a88713
12a0a9963
136304374
143dd185d
152993c33
hex1cb0c1b

30084123 has 4 divisors (see below), whose sum is σ = 40112168. Its totient is φ = 20056080.

The previous prime is 30084121. The next prime is 30084151. The reversal of 30084123 is 32148003.

It is a happy number.

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

It is not a de Polignac number, because 30084123 - 21 = 30084121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30084123.

It is not an unprimeable number, because it can be changed into a prime (30084121) 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, 5014018 + ... + 5014023.

It is an arithmetic number, because the mean of its divisors is an integer number (10028042).

Almost surely, 230084123 is an apocalyptic number.

30084123 is a deficient number, since it is larger than the sum of its proper divisors (10028045).

30084123 is a wasteful number, since it uses less digits than its factorization.

30084123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028044.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 30084123 is about 5484.8995432916. The cubic root of 30084123 is about 311.0134125721.

The spelling of 30084123 in words is "thirty million, eighty-four thousand, one hundred twenty-three".

Divisors: 1 3 10028041 30084123