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42881295025 = 521715251801
BaseRepresentation
bin100111111011111011…
…001010001010110001
311002200110201111020001
4213323323022022301
51200310102420100
631411022550001
73045431664562
oct477373121261
9132613644201
1042881295025
11172054116a8
128388a38301
134074ca446a
14210b114169
1511ae92dd6a
hex9fbeca2b1

42881295025 has 6 divisors (see below), whose sum is σ = 53172805862. Its totient is φ = 34305036000.

The previous prime is 42881295007. The next prime is 42881295071. The reversal of 42881295025 is 52059218824.

It can be written as a sum of positive squares in 3 ways, for example, as 4550311936 + 38330983089 = 67456^2 + 195783^2 .

It is not a de Polignac number, because 42881295025 - 211 = 42881292977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 857625876 + ... + 857625925.

Almost surely, 242881295025 is an apocalyptic number.

It is an amenable number.

42881295025 is a deficient number, since it is larger than the sum of its proper divisors (10291510837).

42881295025 is a wasteful number, since it uses less digits than its factorization.

42881295025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715251811 (or 1715251806 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 42881295025 in words is "forty-two billion, eight hundred eighty-one million, two hundred ninety-five thousand, twenty-five".

Divisors: 1 5 25 1715251801 8576259005 42881295025