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30498429 = 313782011
BaseRepresentation
bin111010001010…
…1111001111101
32010101110222110
41310111321331
530301422204
63005404233
7520142463
oct164257175
963343873
1030498429
1116240a15
12a269679
13641ab10
14409c833
152a26889
hex1d15e7d

30498429 has 8 divisors (see below), whose sum is σ = 43792672. Its totient is φ = 18768240.

The previous prime is 30498427. The next prime is 30498443. The reversal of 30498429 is 92489403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30498429 - 21 = 30498427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 782011 = 30498429 / (3 + 0 + 4 + 9 + 8 + 4 + 2 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30498421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390967 + ... + 391044.

It is an arithmetic number, because the mean of its divisors is an integer number (5474084).

Almost surely, 230498429 is an apocalyptic number.

30498429 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

30498429 is a deficient number, since it is larger than the sum of its proper divisors (13294243).

30498429 is a wasteful number, since it uses less digits than its factorization.

30498429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782027.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 30498429 is about 5522.5382751050. The cubic root of 30498429 is about 312.4346239774.

The spelling of 30498429 in words is "thirty million, four hundred ninety-eight thousand, four hundred twenty-nine".

Divisors: 1 3 13 39 782011 2346033 10166143 30498429