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42147001 = 135236199
BaseRepresentation
bin1010000011000…
…1110010111001
32221022021211001
42200301302321
541242201001
64103205001
71021146361
oct240616271
987267731
1042147001
1121877736
1212146761
138968b70
1458519a1
153a78001
hex2831cb9

42147001 has 8 divisors (see below), whose sum is σ = 45483200. Its totient is φ = 38824272.

The previous prime is 42146999. The next prime is 42147013. The reversal of 42147001 is 10074124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42147001 - 21 = 42146999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42147001.

It is not an unprimeable number, because it can be changed into a prime (42147101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3700 + ... + 9898.

It is an arithmetic number, because the mean of its divisors is an integer number (5685400).

Almost surely, 242147001 is an apocalyptic number.

It is an amenable number.

42147001 is a deficient number, since it is larger than the sum of its proper divisors (3336199).

42147001 is a wasteful number, since it uses less digits than its factorization.

42147001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6735.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 42147001 is about 6492.0721653414. The cubic root of 42147001 is about 348.0077314749.

The spelling of 42147001 in words is "forty-two million, one hundred forty-seven thousand, one".

Divisors: 1 13 523 6199 6799 80587 3242077 42147001