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30144429 = 327478483
BaseRepresentation
bin111001011111…
…1011110101101
32002201111101100
41302333132231
530204110204
62554033313
7514136430
oct162773655
962644340
1030144429
1116019a57
12a118839
136325953
144009817
1529a6a39
hex1cbf7ad

30144429 has 12 divisors (see below), whose sum is σ = 49762336. Its totient is φ = 17225352.

The previous prime is 30144407. The next prime is 30144449. The reversal of 30144429 is 92444103.

It is not a de Polignac number, because 30144429 - 28 = 30144173 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 (30144449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239179 + ... + 239304.

Almost surely, 230144429 is an apocalyptic number.

It is an amenable number.

30144429 is a deficient number, since it is larger than the sum of its proper divisors (19617907).

30144429 is a wasteful number, since it uses less digits than its factorization.

30144429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478496 (or 478493 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 30144429 is about 5490.3942481392. The cubic root of 30144429 is about 311.2210908457.

The spelling of 30144429 in words is "thirty million, one hundred forty-four thousand, four hundred twenty-nine".

Divisors: 1 3 7 9 21 63 478483 1435449 3349381 4306347 10048143 30144429