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472497906 = 2378749651
BaseRepresentation
bin11100001010011…
…011111011110010
31012221002101021110
4130022123323302
51431424413111
6114515134150
714465110626
oct3412337362
91187071243
10472497906
11222792741
121122a4356
1376b7607a
1446a77186
152b7345a6
hex1c29bef2

472497906 has 8 divisors (see below), whose sum is σ = 944995824. Its totient is φ = 157499300.

The previous prime is 472497863. The next prime is 472497911. The reversal of 472497906 is 609794274.

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

472497906 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 39374820 + ... + 39374831.

It is an arithmetic number, because the mean of its divisors is an integer number (118124478).

Almost surely, 2472497906 is an apocalyptic number.

472497906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

472497906 is a wasteful number, since it uses less digits than its factorization.

472497906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78749656.

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 472497906 is about 21737.0169526548. The cubic root of 472497906 is about 778.8729646852.

It can be divided in two parts, 47249 and 7906, that added together give a palindrome (55155).

The spelling of 472497906 in words is "four hundred seventy-two million, four hundred ninety-seven thousand, nine hundred six".

Divisors: 1 2 3 6 78749651 157499302 236248953 472497906