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30473929 = 191603891
BaseRepresentation
bin111010000111…
…1111011001001
32010100020101001
41310033323021
530300131204
63005055001
7520011163
oct164177311
963306331
1030473929
1116224572
12a257461
13640c915
144093933
152a1e4a4
hex1d0fec9

30473929 has 4 divisors (see below), whose sum is σ = 32077840. Its totient is φ = 28870020.

The previous prime is 30473909. The next prime is 30473939. The reversal of 30473929 is 92937403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30473929 - 25 = 30473897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30473909) 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, 801927 + ... + 801964.

It is an arithmetic number, because the mean of its divisors is an integer number (8019460).

Almost surely, 230473929 is an apocalyptic number.

It is an amenable number.

30473929 is a deficient number, since it is larger than the sum of its proper divisors (1603911).

30473929 is a wasteful number, since it uses less digits than its factorization.

30473929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603910.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 30473929 is about 5520.3196465422. The cubic root of 30473929 is about 312.3509398974.

The spelling of 30473929 in words is "thirty million, four hundred seventy-three thousand, nine hundred twenty-nine".

Divisors: 1 19 1603891 30473929