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30318429 = 3173716067
BaseRepresentation
bin111001110100…
…1111101011101
32010001100001210
41303221331131
530230142204
63001455033
7515462631
oct163517535
963040053
1030318429
1116128759
12a1a1479
136386bcb
144052dc1
1529dd389
hex1ce9f5d

30318429 has 16 divisors (see below), whose sum is σ = 43962048. Its totient is φ = 18508032.

The previous prime is 30318419. The next prime is 30318437. The reversal of 30318429 is 92481303.

It is not a de Polignac number, because 30318429 - 24 = 30318413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30318396 and 30318405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30318419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6147 + ... + 9920.

It is an arithmetic number, because the mean of its divisors is an integer number (2747628).

Almost surely, 230318429 is an apocalyptic number.

It is an amenable number.

30318429 is a deficient number, since it is larger than the sum of its proper divisors (13643619).

30318429 is a wasteful number, since it uses less digits than its factorization.

30318429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16124.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30318429 is about 5506.2173041027. The cubic root of 30318429 is about 311.8187536233.

The spelling of 30318429 in words is "thirty million, three hundred eighteen thousand, four hundred twenty-nine".

Divisors: 1 3 17 37 51 111 629 1887 16067 48201 273139 594479 819417 1783437 10106143 30318429