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30869799 = 313775109
BaseRepresentation
bin111010111000…
…0100100100111
32011002100101220
41311300210213
530400313144
63021351423
7523250262
oct165604447
964070356
1030869799
1116474a34
12a408573
13651ab6c
144157cd9
152a9b919
hex1d70927

30869799 has 8 divisors (see below), whose sum is σ = 41460720. Its totient is φ = 20429376.

The previous prime is 30869791. The next prime is 30869809. The reversal of 30869799 is 99796803.

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

It is not a de Polignac number, because 30869799 - 23 = 30869791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30869791) 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, 37144 + ... + 37965.

It is an arithmetic number, because the mean of its divisors is an integer number (5182590).

Almost surely, 230869799 is an apocalyptic number.

30869799 is a deficient number, since it is larger than the sum of its proper divisors (10590921).

30869799 is a wasteful number, since it uses less digits than its factorization.

30869799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75249.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 30869799 is about 5556.0596649064. The cubic root of 30869799 is about 313.6976514092.

It can be divided in two parts, 308 and 69799, that added together give a palindrome (70107).

The spelling of 30869799 in words is "thirty million, eight hundred sixty-nine thousand, seven hundred ninety-nine".

Divisors: 1 3 137 411 75109 225327 10289933 30869799