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472197081 = 3193815539
BaseRepresentation
bin11100001001010…
…010011111011001
31012220112002121210
4130021102133121
51431340301311
6114504453333
714462415606
oct3411223731
91186462553
10472197081
112225a7724
1211217a249
1376a9c175
14469d96ad
152b6c53a6
hex1c2527d9

472197081 has 8 divisors (see below), whose sum is σ = 632859040. Its totient is φ = 313166592.

The previous prime is 472197079. The next prime is 472197097. The reversal of 472197081 is 180791274.

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

It is not a de Polignac number, because 472197081 - 21 = 472197079 is a prime.

It is a super-2 number, since 2×4721970812 = 445940166609841122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472197031) 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, 407191 + ... + 408348.

It is an arithmetic number, because the mean of its divisors is an integer number (79107380).

Almost surely, 2472197081 is an apocalyptic number.

It is an amenable number.

472197081 is a deficient number, since it is larger than the sum of its proper divisors (160661959).

472197081 is a wasteful number, since it uses less digits than its factorization.

472197081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815735.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 472197081 is about 21730.0962031925. The cubic root of 472197081 is about 778.7076347095.

The spelling of 472197081 in words is "four hundred seventy-two million, one hundred ninety-seven thousand, eighty-one".

Divisors: 1 3 193 579 815539 2446617 157399027 472197081