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25430052 = 2232119171
BaseRepresentation
bin110000100000…
…0100000100100
31202211222110210
41201000200210
523002230202
62305015420
7426103044
oct141004044
952758423
1025430052
1113399a7a
128624570
135364b8b
14353d724
152374c6c
hex1840824

25430052 has 12 divisors (see below), whose sum is σ = 59336816. Its totient is φ = 8476680.

The previous prime is 25430039. The next prime is 25430081. The reversal of 25430052 is 25003452.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1059574 + ... + 1059597.

Almost surely, 225430052 is an apocalyptic number.

It is an amenable number.

25430052 is an abundant number, since it is smaller than the sum of its proper divisors (33906764).

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

25430052 is a wasteful number, since it uses less digits than its factorization.

25430052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119178 (or 2119176 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 25430052 is about 5042.8218290953. The cubic root of 25430052 is about 294.0688903305.

The spelling of 25430052 in words is "twenty-five million, four hundred thirty thousand, fifty-two".

Divisors: 1 2 3 4 6 12 2119171 4238342 6357513 8476684 12715026 25430052