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472199231 = 7261239661
BaseRepresentation
bin11100001001010…
…011000000111111
31012220112012120102
4130021103000333
51431340333411
6114504511315
714462425100
oct3411230077
91186465512
10472199231
112225a92a9
1211217b53b
1376aa013a
14469da3a7
152b6c5d3b
hex1c25303f

472199231 has 24 divisors (see below), whose sum is σ = 561481920. Its totient is φ = 395841600.

The previous prime is 472199219. The next prime is 472199237. The reversal of 472199231 is 132991274.

It is a de Polignac number, because none of the positive numbers 2k-472199231 is a prime.

It is a super-2 number, since 2×4721992312 = 445944227513982722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472199237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 714041 + ... + 714701.

It is an arithmetic number, because the mean of its divisors is an integer number (23395080).

Almost surely, 2472199231 is an apocalyptic number.

472199231 is a deficient number, since it is larger than the sum of its proper divisors (89282689).

472199231 is a wasteful number, since it uses less digits than its factorization.

472199231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 968 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 472199231 is about 21730.1456736949. The cubic root of 472199231 is about 778.7088165739.

The spelling of 472199231 in words is "four hundred seventy-two million, one hundred ninety-nine thousand, two hundred thirty-one".

Divisors: 1 7 49 61 239 427 661 1673 2989 4627 11711 14579 32389 40321 102053 157979 282247 714371 1105853 1975729 7740971 9636719 67457033 472199231