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30423463 = 72620887
BaseRepresentation
bin111010000001…
…1100110100111
32010020200010221
41310003212213
530242022323
63004025211
7516411100
oct164034647
963220127
1030423463
111619a664
12a232207
1363c2965
14407d3a7
152a0e55d
hex1d039a7

30423463 has 6 divisors (see below), whose sum is σ = 35390616. Its totient is φ = 26077212.

The previous prime is 30423413. The next prime is 30423473. The reversal of 30423463 is 36432403.

It is a de Polignac number, because none of the positive numbers 2k-30423463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30423413) 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 5 ways as a sum of consecutive naturals, for example, 310395 + ... + 310492.

It is an arithmetic number, because the mean of its divisors is an integer number (5898436).

Almost surely, 230423463 is an apocalyptic number.

30423463 is a deficient number, since it is larger than the sum of its proper divisors (4967153).

30423463 is an equidigital number, since it uses as much as digits as its factorization.

30423463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620901 (or 620894 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 30423463 is about 5515.7468216009. The cubic root of 30423463 is about 312.1784229023.

Adding to 30423463 its reverse (36432403), we get a palindrome (66855866).

The spelling of 30423463 in words is "thirty million, four hundred twenty-three thousand, four hundred sixty-three".

Divisors: 1 7 49 620887 4346209 30423463