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42471022417 = 153127740707
BaseRepresentation
bin100111100011011110…
…000101111101010001
311001121212201111000021
4213203132011331101
51143440040204132
631302205223441
73032320506535
oct474336057521
9131555644007
1042471022417
111701486a82a
128293561b81
13400aca71c5
1420ac837bc5
1511888db997
hex9e3785f51

42471022417 has 4 divisors (see below), whose sum is σ = 42498764656. Its totient is φ = 42443280180.

The previous prime is 42471022387. The next prime is 42471022453. The reversal of 42471022417 is 71422017424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42471022417 - 27 = 42471022289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42471022717) 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, 13868823 + ... + 13871884.

It is an arithmetic number, because the mean of its divisors is an integer number (10624691164).

Almost surely, 242471022417 is an apocalyptic number.

It is an amenable number.

42471022417 is a deficient number, since it is larger than the sum of its proper divisors (27742239).

42471022417 is a wasteful number, since it uses less digits than its factorization.

42471022417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27742238.

The product of its (nonzero) digits is 25088, while the sum is 34.

The spelling of 42471022417 in words is "forty-two billion, four hundred seventy-one million, twenty-two thousand, four hundred seventeen".

Divisors: 1 1531 27740707 42471022417