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30219126 = 237719503
BaseRepresentation
bin111001101000…
…1101101110110
32002212021211220
41303101231312
530214003001
62555411210
7514600260
oct163215566
962767756
1030219126
1116070093
12a153b06
136350952
144028b30
1529bdc36
hex1cd1b76

30219126 has 16 divisors (see below), whose sum is σ = 69072384. Its totient is φ = 8634024.

The previous prime is 30219113. The next prime is 30219157. The reversal of 30219126 is 62191203.

It is a junction number, because it is equal to n+sod(n) for n = 30219096 and 30219105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359710 + ... + 359793.

It is an arithmetic number, because the mean of its divisors is an integer number (4317024).

Almost surely, 230219126 is an apocalyptic number.

30219126 is an abundant number, since it is smaller than the sum of its proper divisors (38853258).

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

30219126 is a wasteful number, since it uses less digits than its factorization.

30219126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719515.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 30219126 is about 5497.1925562054. The cubic root of 30219126 is about 311.4779443447.

The spelling of 30219126 in words is "thirty million, two hundred nineteen thousand, one hundred twenty-six".

Divisors: 1 2 3 6 7 14 21 42 719503 1439006 2158509 4317018 5036521 10073042 15109563 30219126