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30219907 = 2310113009
BaseRepresentation
bin111001101000…
…1111010000011
32002212022220211
41303101322003
530214014112
62555414551
7514602454
oct163217203
962768824
1030219907
1116070733
12a154457
136351103
14402912b
1529be0a7
hex1cd1e83

30219907 has 8 divisors (see below), whose sum is σ = 31848480. Its totient is φ = 28617600.

The previous prime is 30219901. The next prime is 30219913. The reversal of 30219907 is 70991203.

It is an interprime number because it is at equal distance from previous prime (30219901) and next prime (30219913).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30219907 - 27 = 30219779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30219901) 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, 4182 + ... + 8827.

It is an arithmetic number, because the mean of its divisors is an integer number (3981060).

Almost surely, 230219907 is an apocalyptic number.

30219907 is a deficient number, since it is larger than the sum of its proper divisors (1628573).

30219907 is a wasteful number, since it uses less digits than its factorization.

30219907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13133.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 30219907 is about 5497.2635920065. The cubic root of 30219907 is about 311.4806276583.

The spelling of 30219907 in words is "thirty million, two hundred nineteen thousand, nine hundred seven".

Divisors: 1 23 101 2323 13009 299207 1313909 30219907