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30289024 = 27832851
BaseRepresentation
bin111001110001…
…0110010000000
32002222211201201
41303202302000
530223222044
63001110544
7515311123
oct163426200
962884651
1030289024
1116108657
12a188454
1363766cc
1440463ba
1529d47d4
hex1ce2c80

30289024 has 32 divisors (see below), whose sum is σ = 61089840. Its totient is φ = 14956800.

The previous prime is 30288989. The next prime is 30289027. The reversal of 30289024 is 42098203.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 30288983 and 30289001.

It is not an unprimeable number, because it can be changed into a prime (30289027) 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, 9199 + ... + 12049.

Almost surely, 230289024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30289024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30544920).

30289024 is an abundant number, since it is smaller than the sum of its proper divisors (30800816).

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

30289024 is an equidigital number, since it uses as much as digits as its factorization.

30289024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948 (or 2936 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 30289024 is about 5503.5464929443. The cubic root of 30289024 is about 311.7179129068.

The spelling of 30289024 in words is "thirty million, two hundred eighty-nine thousand, twenty-four".

Divisors: 1 2 4 8 16 32 64 83 128 166 332 664 1328 2656 2851 5312 5702 10624 11404 22808 45616 91232 182464 236633 364928 473266 946532 1893064 3786128 7572256 15144512 30289024