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471718137 = 31121299499
BaseRepresentation
bin11100000111011…
…101100011111001
31012212121202122010
4130013131203321
51431224440022
6114450320133
714455352352
oct3407354371
91185552563
10471718137
112222aa900
12111b89049
1376962177
1446912d29
152b62d50c
hex1c1dd8f9

471718137 has 12 divisors (see below), whose sum is σ = 691334000. Its totient is φ = 285889560.

The previous prime is 471718099. The next prime is 471718139. The reversal of 471718137 is 731817174.

It is a happy number.

It is not a de Polignac number, because 471718137 - 212 = 471714041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 471718095 and 471718104.

It is not an unprimeable number, because it can be changed into a prime (471718139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649387 + ... + 650112.

Almost surely, 2471718137 is an apocalyptic number.

It is an amenable number.

471718137 is a deficient number, since it is larger than the sum of its proper divisors (219615863).

471718137 is a wasteful number, since it uses less digits than its factorization.

471718137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299524 (or 1299513 counting only the distinct ones).

The product of its digits is 32928, while the sum is 39.

The square root of 471718137 is about 21719.0731155821. The cubic root of 471718137 is about 778.4442676177. Note that the first 3 decimals are identical.

The spelling of 471718137 in words is "four hundred seventy-one million, seven hundred eighteen thousand, one hundred thirty-seven".

Divisors: 1 3 11 33 121 363 1299499 3898497 14294489 42883467 157239379 471718137