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74557001 = 127587063
BaseRepresentation
bin1000111000110…
…10011001001001
312012021212222102
410130122121021
5123041311001
611222003145
71563503231
oct434323111
9165255872
1074557001
11390a3862
1220b764b5
13125a5a8c
149c8acc1
15682ae6b
hex471a649

74557001 has 4 divisors (see below), whose sum is σ = 75144192. Its totient is φ = 73969812.

The previous prime is 74556967. The next prime is 74557003. The reversal of 74557001 is 10075547.

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 74557001 - 210 = 74555977 is a prime.

It is a super-3 number, since 3×745570013 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74557003) 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, 293405 + ... + 293658.

It is an arithmetic number, because the mean of its divisors is an integer number (18786048).

Almost surely, 274557001 is an apocalyptic number.

It is an amenable number.

74557001 is a deficient number, since it is larger than the sum of its proper divisors (587191).

74557001 is a wasteful number, since it uses less digits than its factorization.

74557001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587190.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 74557001 is about 8634.6395987325. The cubic root of 74557001 is about 420.8843817520.

The spelling of 74557001 in words is "seventy-four million, five hundred fifty-seven thousand, one".

Divisors: 1 127 587063 74557001