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27424925680 = 245342811571
BaseRepresentation
bin11001100010101001…
…110010011111110000
32121210021211120111011
4121202221302133300
5422131240110210
620333203200304
71660421010355
oct314251623760
977707746434
1027424925680
11106a3723639
125394676094
132780a3b599
14148245462c
15aa7a1dd8a
hex662a727f0

27424925680 has 20 divisors (see below), whose sum is σ = 63762952392. Its totient is φ = 10969970240.

The previous prime is 27424925669. The next prime is 27424925687. The reversal of 27424925680 is 8652942472.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27424925687) 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, 171405706 + ... + 171405865.

Almost surely, 227424925680 is an apocalyptic number.

27424925680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27424925680 is an abundant number, since it is smaller than the sum of its proper divisors (36338026712).

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

27424925680 is a wasteful number, since it uses less digits than its factorization.

27424925680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342811584 (or 342811578 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 27424925680 in words is "twenty-seven billion, four hundred twenty-four million, nine hundred twenty-five thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 342811571 685623142 1371246284 1714057855 2742492568 3428115710 5484985136 6856231420 13712462840 27424925680