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30214197 = 3213258241
BaseRepresentation
bin111001101000…
…0100000110101
32002212001002100
41303100200311
530213323242
62555332313
7514550016
oct163204065
962761070
1030214197
1116067412
12a151099
13634b630
14402700d
1529bc54c
hex1cd0835

30214197 has 12 divisors (see below), whose sum is σ = 47000044. Its totient is φ = 18593280.

The previous prime is 30214193. The next prime is 30214207. The reversal of 30214197 is 79141203.

It can be written as a sum of positive squares in 2 ways, for example, as 17189316 + 13024881 = 4146^2 + 3609^2 .

It is not a de Polignac number, because 30214197 - 22 = 30214193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30214197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30214193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129004 + ... + 129237.

Almost surely, 230214197 is an apocalyptic number.

It is an amenable number.

30214197 is a deficient number, since it is larger than the sum of its proper divisors (16785847).

30214197 is a wasteful number, since it uses less digits than its factorization.

30214197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258260 (or 258257 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 30214197 is about 5496.7442181713. The cubic root of 30214197 is about 311.4610085111.

The spelling of 30214197 in words is "thirty million, two hundred fourteen thousand, one hundred ninety-seven".

Divisors: 1 3 9 13 39 117 258241 774723 2324169 3357133 10071399 30214197