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471217157 = 1982729989
BaseRepresentation
bin11100000101100…
…011010000000101
31012211200022102022
4130011203100011
51431112422112
6114431452525
714451164645
oct3405432005
91184608368
10471217157
11221a98474
12111987145
1376818128
1446822525
152b57ed72
hex1c163405

471217157 has 8 divisors (see below), whose sum is σ = 496634400. Its totient is φ = 445861584.

The previous prime is 471217147. The next prime is 471217181. The reversal of 471217157 is 751712174.

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 471217157 - 210 = 471216133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471217147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719 + ... + 30707.

It is an arithmetic number, because the mean of its divisors is an integer number (62079300).

Almost surely, 2471217157 is an apocalyptic number.

It is an amenable number.

471217157 is a deficient number, since it is larger than the sum of its proper divisors (25417243).

471217157 is a wasteful number, since it uses less digits than its factorization.

471217157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30835.

The product of its digits is 13720, while the sum is 35.

The square root of 471217157 is about 21707.5368708658. The cubic root of 471217157 is about 778.1685922945.

The spelling of 471217157 in words is "four hundred seventy-one million, two hundred seventeen thousand, one hundred fifty-seven".

Divisors: 1 19 827 15713 29989 569791 24800903 471217157