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28055852707 = 173499932441
BaseRepresentation
bin11010001000010000…
…100101011010100011
32200102021000222122211
4122020100211122203
5424424244241312
620515542142551
72012151545641
oct321020453243
980367028584
1028055852707
1110997885433
12552ba21a57
13285167509c
14150216c191
15ae30ea3a7
hex6884256a3

28055852707 has 8 divisors (see below), whose sum is σ = 28224540000. Its totient is φ = 27887240640.

The previous prime is 28055852689. The next prime is 28055852723. The reversal of 28055852707 is 70725855082.

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 28055852707 - 211 = 28055850659 is a prime.

It is a super-2 number, since 2×280558527072 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28055852107) 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, 848607 + ... + 881047.

It is an arithmetic number, because the mean of its divisors is an integer number (3528067500).

Almost surely, 228055852707 is an apocalyptic number.

28055852707 is a deficient number, since it is larger than the sum of its proper divisors (168687293).

28055852707 is a wasteful number, since it uses less digits than its factorization.

28055852707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37613.

The product of its (nonzero) digits is 1568000, while the sum is 49.

The spelling of 28055852707 in words is "twenty-eight billion, fifty-five million, eight hundred fifty-two thousand, seven hundred seven".

Divisors: 1 173 4999 32441 864827 5612293 162172559 28055852707