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30435423 = 317371272
BaseRepresentation
bin111010000011…
…0100001011111
32010021021112220
41310012201133
530242413143
63004200423
7516461004
oct164064137
963237486
1030435423
11161a8647
12a239113
1363c8235
1440838ab
152a12d83
hex1d0685f

30435423 has 24 divisors (see below), whose sum is σ = 44479152. Its totient is φ = 18434304.

The previous prime is 30435403. The next prime is 30435437. The reversal of 30435423 is 32453403.

It is not a de Polignac number, because 30435423 - 210 = 30434399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30435393 and 30435402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30435403) 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 23 ways as a sum of consecutive naturals, for example, 239586 + ... + 239712.

It is an arithmetic number, because the mean of its divisors is an integer number (1853298).

Almost surely, 230435423 is an apocalyptic number.

30435423 is a deficient number, since it is larger than the sum of its proper divisors (14043729).

30435423 is a wasteful number, since it uses less digits than its factorization.

30435423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 30435423 is about 5516.8308837593. The cubic root of 30435423 is about 312.2193251580.

Adding to 30435423 its reverse (32453403), we get a palindrome (62888826).

The spelling of 30435423 in words is "thirty million, four hundred thirty-five thousand, four hundred twenty-three".

Divisors: 1 3 17 37 51 111 127 381 629 1887 2159 4699 6477 14097 16129 48387 79883 239649 274193 596773 822579 1790319 10145141 30435423