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30535423 = 241126703
BaseRepresentation
bin111010001111…
…0111011111111
32010110100201121
41310132323333
530304113143
63010251411
7520355362
oct164367377
963410647
1030535423
1116266796
12a286b67
1364318c9
1440ac0d9
152a327ed
hex1d1eeff

30535423 has 4 divisors (see below), whose sum is σ = 30662368. Its totient is φ = 30408480.

The previous prime is 30535409. The next prime is 30535433. The reversal of 30535423 is 32453503.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32453503 = 71945137.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30535423 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 (30535433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63111 + ... + 63592.

It is an arithmetic number, because the mean of its divisors is an integer number (7665592).

Almost surely, 230535423 is an apocalyptic number.

30535423 is a deficient number, since it is larger than the sum of its proper divisors (126945).

30535423 is a wasteful number, since it uses less digits than its factorization.

30535423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126944.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 30535423 is about 5525.8866256918. The cubic root of 30535423 is about 312.5608986382.

Adding to 30535423 its reverse (32453503), we get a palindrome (62988926).

The spelling of 30535423 in words is "thirty million, five hundred thirty-five thousand, four hundred twenty-three".

Divisors: 1 241 126703 30535423