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30802864 = 241925179
BaseRepresentation
bin111010110000…
…0001110110000
32010221221120211
41311200032300
530341142424
63020113504
7522551161
oct165401660
963857524
1030802864
1116429714
12a395894
1364c6561
14413b768
152a86b94
hex1d603b0

30802864 has 10 divisors (see below), whose sum is σ = 59680580. Its totient is φ = 15401424.

The previous prime is 30802847. The next prime is 30802867. The reversal of 30802864 is 46820803.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30802867) 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 as a sum of consecutive naturals, namely, 962574 + ... + 962605.

It is an arithmetic number, because the mean of its divisors is an integer number (5968058).

Almost surely, 230802864 is an apocalyptic number.

It is an amenable number.

30802864 is a deficient number, since it is larger than the sum of its proper divisors (28877716).

30802864 is a wasteful number, since it uses less digits than its factorization.

30802864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925187 (or 1925181 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 30802864 is about 5550.0327926959. The cubic root of 30802864 is about 313.4707570823.

The spelling of 30802864 in words is "thirty million, eight hundred two thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 1925179 3850358 7700716 15401432 30802864