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24381930 = 235812731
BaseRepresentation
bin101110100000…
…0100111101010
31200212201201110
41131000213222
522220210210
62230331150
7414146226
oct135004752
950781643
1024381930
1112843561
1281b9ab6
135088aa1
143349786
152219420
hex17409ea

24381930 has 16 divisors (see below), whose sum is σ = 58516704. Its totient is φ = 6501840.

The previous prime is 24381923. The next prime is 24381937. The reversal of 24381930 is 3918342.

It is an interprime number because it is at equal distance from previous prime (24381923) and next prime (24381937).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 812731 = 24381930 / (2 + 4 + 3 + 8 + 1 + 9 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (24381937) 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, 406336 + ... + 406395.

It is an arithmetic number, because the mean of its divisors is an integer number (3657294).

Almost surely, 224381930 is an apocalyptic number.

24381930 is an abundant number, since it is smaller than the sum of its proper divisors (34134774).

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

24381930 is a wasteful number, since it uses less digits than its factorization.

24381930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812741.

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

The square root of 24381930 is about 4937.8061930376. The cubic root of 24381930 is about 289.9719750960.

The spelling of 24381930 in words is "twenty-four million, three hundred eighty-one thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 812731 1625462 2438193 4063655 4876386 8127310 12190965 24381930