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30799772 = 2215150993
BaseRepresentation
bin111010101111…
…1011110011100
32010221210100022
41311133132130
530341043042
63020051312
7522536153
oct165373634
963853308
1030799772
1116427363
12a393b38
1364c5023
14413a59a
152a85cd2
hex1d5f79c

30799772 has 12 divisors (see below), whose sum is σ = 54257616. Its totient is φ = 15297600.

The previous prime is 30799763. The next prime is 30799793. The reversal of 30799772 is 27799703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24893 + ... + 26100.

It is an arithmetic number, because the mean of its divisors is an integer number (4521468).

Almost surely, 230799772 is an apocalyptic number.

It is an amenable number.

30799772 is a deficient number, since it is larger than the sum of its proper divisors (23457844).

30799772 is a wasteful number, since it uses less digits than its factorization.

30799772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51148 (or 51146 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 44.

The square root of 30799772 is about 5549.7542287925. The cubic root of 30799772 is about 313.4602679709.

The spelling of 30799772 in words is "thirty million, seven hundred ninety-nine thousand, seven hundred seventy-two".

Divisors: 1 2 4 151 302 604 50993 101986 203972 7699943 15399886 30799772