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28755958642 = 271202506751
BaseRepresentation
bin11010110001111111…
…010001101101110010
32202020001102001110021
4122301333101231302
5432343011134032
621113231554054
72035412421055
oct326177215562
982201361407
1028755958642
1111216a97384
1256a638b92a
132933720758
14156b132a9c
15b347de097
hex6b1fd1b72

28755958642 has 8 divisors (see below), whose sum is σ = 43741458432. Its totient is φ = 14175472500.

The previous prime is 28755958607. The next prime is 28755958657. The reversal of 28755958642 is 24685955782.

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

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, 101253234 + ... + 101253517.

It is an arithmetic number, because the mean of its divisors is an integer number (5467682304).

Almost surely, 228755958642 is an apocalyptic number.

28755958642 is a deficient number, since it is larger than the sum of its proper divisors (14985499790).

28755958642 is a wasteful number, since it uses less digits than its factorization.

28755958642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202506824.

The product of its digits is 48384000, while the sum is 61.

The spelling of 28755958642 in words is "twenty-eight billion, seven hundred fifty-five million, nine hundred fifty-eight thousand, six hundred forty-two".

Divisors: 1 2 71 142 202506751 405013502 14377979321 28755958642