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30134429 = 132318033
BaseRepresentation
bin111001011110…
…1000010011101
32002200222122222
41302331002131
530203300204
62553515125
7514065323
oct162750235
962628588
1030134429
1116012496
12a112aa5
136321230
144005d13
1529a3abe
hex1cbd09d

30134429 has 4 divisors (see below), whose sum is σ = 32452476. Its totient is φ = 27816384.

The previous prime is 30134417. The next prime is 30134431. The reversal of 30134429 is 92443103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3115225 + 27019204 = 1765^2 + 5198^2 .

It is a cyclic number.

It is not a de Polignac number, because 30134429 - 24 = 30134413 is a prime.

It is a super-2 number, since 2×301344292 = 1816167622312082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30134398 and 30134407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30134479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159004 + ... + 1159029.

It is an arithmetic number, because the mean of its divisors is an integer number (8113119).

Almost surely, 230134429 is an apocalyptic number.

It is an amenable number.

30134429 is a deficient number, since it is larger than the sum of its proper divisors (2318047).

30134429 is a wasteful number, since it uses less digits than its factorization.

30134429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318046.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 30134429 is about 5489.4834911857. The cubic root of 30134429 is about 311.1866725998.

The spelling of 30134429 in words is "thirty million, one hundred thirty-four thousand, four hundred twenty-nine".

Divisors: 1 13 2318033 30134429