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28020571962 = 234670095327
BaseRepresentation
bin11010000110001001…
…111111111100111010
32200022210122112120120
4122012021333330322
5424341231300322
620512242034110
72011242634425
oct320611777472
980283575516
1028020571962
1110979978499
125520048936
1328472715c6
1414db5c69bc
15adee7ba5c
hex68627ff3a

28020571962 has 8 divisors (see below), whose sum is σ = 56041143936. Its totient is φ = 9340190652.

The previous prime is 28020571937. The next prime is 28020571973. The reversal of 28020571962 is 26917502082.

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

28020571962 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2335047658 + ... + 2335047669.

It is an arithmetic number, because the mean of its divisors is an integer number (7005142992).

Almost surely, 228020571962 is an apocalyptic number.

28020571962 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.

28020571962 is a wasteful number, since it uses less digits than its factorization.

28020571962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670095332.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 28020571962 in words is "twenty-eight billion, twenty million, five hundred seventy-one thousand, nine hundred sixty-two".

Divisors: 1 2 3 6 4670095327 9340190654 14010285981 28020571962