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30799770 = 2355917401
BaseRepresentation
bin111010101111…
…1011110011010
32010221210100020
41311133132122
530341043040
63020051310
7522536151
oct165373632
963853306
1030799770
1116427361
12a393b36
1364c5021
14413a598
152a85cd0
hex1d5f79a

30799770 has 32 divisors (see below), whose sum is σ = 75176640. Its totient is φ = 8073600.

The previous prime is 30799763. The next prime is 30799793. The reversal of 30799770 is 7799703.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 6931 + ... + 10470.

It is an arithmetic number, because the mean of its divisors is an integer number (2349270).

Almost surely, 230799770 is an apocalyptic number.

30799770 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30799770 is an abundant number, since it is smaller than the sum of its proper divisors (44376870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30799770 is a wasteful number, since it uses less digits than its factorization.

30799770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17470.

The product of its (nonzero) digits is 83349, while the sum is 42.

The square root of 30799770 is about 5549.7540486043. The cubic root of 30799770 is about 313.4602611860.

The spelling of 30799770 in words is "thirty million, seven hundred ninety-nine thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 59 118 177 295 354 590 885 1770 17401 34802 52203 87005 104406 174010 261015 522030 1026659 2053318 3079977 5133295 6159954 10266590 15399885 30799770