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42487990272 = 2113271373347
BaseRepresentation
bin100111100100011110…
…110100100000000000
311001200001122112112100
4213210132310200000
51144003411142042
631304013030400
73032614646520
oct474436644000
9131601575470
1042487990272
11170233a9a52
128299185400
134011668460
1420b0bb3680
15118a13e24c
hex9e47b4800

42487990272 has 576 divisors, whose sum is σ = 153541664640. Its totient is φ = 11020271616.

The previous prime is 42487990243. The next prime is 42487990283. The reversal of 42487990272 is 27209978424.

It is a happy number.

42487990272 is a `hidden beast` number, since 4 + 2 + 487 + 9 + 90 + 2 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122443603 + ... + 122443949.

It is an arithmetic number, because the mean of its divisors is an integer number (266565390).

Almost surely, 242487990272 is an apocalyptic number.

42487990272 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42487990272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76770832320).

42487990272 is an abundant number, since it is smaller than the sum of its proper divisors (111053674368).

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

42487990272 is a wasteful number, since it uses less digits than its factorization.

42487990272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 42487990272 in words is "forty-two billion, four hundred eighty-seven million, nine hundred ninety thousand, two hundred seventy-two".