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30342798 = 2321685711
BaseRepresentation
bin111001110111…
…1111010001110
32010002120111100
41303233322032
530231432143
63002203530
7515623653
oct163577216
963076440
1030342798
1116144aa2
12a1b35a6
136395025
14405bc2a
1529e56d3
hex1cefe8e

30342798 has 12 divisors (see below), whose sum is σ = 65742768. Its totient is φ = 10114260.

The previous prime is 30342757. The next prime is 30342811. The reversal of 30342798 is 89724303.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 842838 + ... + 842873.

It is an arithmetic number, because the mean of its divisors is an integer number (5478564).

Almost surely, 230342798 is an apocalyptic number.

30342798 is an abundant number, since it is smaller than the sum of its proper divisors (35399970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30342798 is a wasteful number, since it uses less digits than its factorization.

30342798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685719 (or 1685716 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 30342798 is about 5508.4297217991. The cubic root of 30342798 is about 311.9022746202.

It can be divided in two parts, 3034 and 2798, that added together give a cube (5832 = 183).

The spelling of 30342798 in words is "thirty million, three hundred forty-two thousand, seven hundred ninety-eight".

Divisors: 1 2 3 6 9 18 1685711 3371422 5057133 10114266 15171399 30342798