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30787113 = 371466053
BaseRepresentation
bin111010101110…
…0011000101001
32010221010222110
41311130120221
530340141423
63015512533
7522454230
oct165343051
963833873
1030787113
11164188a5
12a388749
1364bc336
144135b17
152a82193
hex1d5c629

30787113 has 8 divisors (see below), whose sum is σ = 46913728. Its totient is φ = 17592624.

The previous prime is 30787111. The next prime is 30787139. The reversal of 30787113 is 31178703.

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

It is not a de Polignac number, because 30787113 - 21 = 30787111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30787111) 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, 733006 + ... + 733047.

It is an arithmetic number, because the mean of its divisors is an integer number (5864216).

Almost surely, 230787113 is an apocalyptic number.

It is an amenable number.

30787113 is a deficient number, since it is larger than the sum of its proper divisors (16126615).

30787113 is a wasteful number, since it uses less digits than its factorization.

30787113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466063.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 30787113 is about 5548.6136106238. The cubic root of 30787113 is about 313.4173170329.

The spelling of 30787113 in words is "thirty million, seven hundred eighty-seven thousand, one hundred thirteen".

Divisors: 1 3 7 21 1466053 4398159 10262371 30787113