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475719047 = 3171500691
BaseRepresentation
bin11100010110101…
…110010110000111
31020011011000211222
4130112232112013
51433241002142
6115112150555
714534354666
oct3426562607
91204130758
10475719047
11224592841
1211339845b
137773327b
1447274ddd
152bb6dbd2
hex1c5ae587

475719047 has 4 divisors (see below), whose sum is σ = 477220056. Its totient is φ = 474218040.

The previous prime is 475719037. The next prime is 475719061. The reversal of 475719047 is 740917574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740917574 = 2370458787.

It is a cyclic number.

It is not a de Polignac number, because 475719047 - 26 = 475718983 is a prime.

It is a super-2 number, since 2×4757190472 = 452617223357176418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 475718989 and 475719007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475719037) 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, 750029 + ... + 750662.

It is an arithmetic number, because the mean of its divisors is an integer number (119305014).

Almost surely, 2475719047 is an apocalyptic number.

475719047 is a deficient number, since it is larger than the sum of its proper divisors (1501009).

475719047 is a wasteful number, since it uses less digits than its factorization.

475719047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501008.

The product of its (nonzero) digits is 246960, while the sum is 44.

The square root of 475719047 is about 21810.9845490753. The cubic root of 475719047 is about 780.6388842944.

The spelling of 475719047 in words is "four hundred seventy-five million, seven hundred nineteen thousand, forty-seven".

Divisors: 1 317 1500691 475719047