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30219124 = 2213581137
BaseRepresentation
bin111001101000…
…1101101110100
32002212021211211
41303101231310
530214002444
62555411204
7514600255
oct163215564
962767754
1030219124
1116070091
12a153b04
136350950
144028b2c
1529bdc34
hex1cd1b74

30219124 has 12 divisors (see below), whose sum is σ = 56951524. Its totient is φ = 13947264.

The previous prime is 30219113. The next prime is 30219157. The reversal of 30219124 is 42191203.

It can be written as a sum of positive squares in 2 ways, for example, as 8596624 + 21622500 = 2932^2 + 4650^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30219095 and 30219104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290517 + ... + 290620.

Almost surely, 230219124 is an apocalyptic number.

It is an amenable number.

30219124 is a deficient number, since it is larger than the sum of its proper divisors (26732400).

30219124 is a wasteful number, since it uses less digits than its factorization.

30219124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581154 (or 581152 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 30219124 is about 5497.1923742944. The cubic root of 30219124 is about 311.4779374732.

The spelling of 30219124 in words is "thirty million, two hundred nineteen thousand, one hundred twenty-four".

Divisors: 1 2 4 13 26 52 581137 1162274 2324548 7554781 15109562 30219124