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28724750006 = 243334008721
BaseRepresentation
bin11010110000001000…
…001110011010110110
32202010212200111020212
4122300020032122312
5432312014000011
621110155025422
72034553226561
oct326010163266
982125614225
1028724750006
1111200410917
125697a3b272
13292a1145c4
141566d2b4d8
15b31bc708b
hex6b020e6b6

28724750006 has 8 divisors (see below), whose sum is σ = 44089151304. Its totient is φ = 14028366240.

The previous prime is 28724750003. The next prime is 28724750011. The reversal of 28724750006 is 60005742782.

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

It is a super-2 number, since 2×287247500062 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28724750003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167004275 + ... + 167004446.

It is an arithmetic number, because the mean of its divisors is an integer number (5511143913).

Almost surely, 228724750006 is an apocalyptic number.

28724750006 is a deficient number, since it is larger than the sum of its proper divisors (15364401298).

28724750006 is a wasteful number, since it uses less digits than its factorization.

28724750006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334008766.

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 28724750006 in words is "twenty-eight billion, seven hundred twenty-four million, seven hundred fifty thousand, six".

Divisors: 1 2 43 86 334008721 668017442 14362375003 28724750006