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28927668498 = 235390967511
BaseRepresentation
bin11010111100001110…
…010011000100010010
32202200000111211002120
4122330032103010102
5433220440342443
621142244155110
72042566060641
oct327416230422
982600454076
1028927668498
11112a4a07553
125733998a96
132960181111
141585c6d358
15b4490b083
hex6bc393112

28927668498 has 16 divisors (see below), whose sum is σ = 58946947776. Its totient is φ = 9460621040.

The previous prime is 28927668493. The next prime is 28927668509. The reversal of 28927668498 is 89486672982.

It is not an unprimeable number, because it can be changed into a prime (28927668493) 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, 45483438 + ... + 45484073.

It is an arithmetic number, because the mean of its divisors is an integer number (3684184236).

Almost surely, 228927668498 is an apocalyptic number.

28927668498 is an abundant number, since it is smaller than the sum of its proper divisors (30019279278).

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

28927668498 is a wasteful number, since it uses less digits than its factorization.

28927668498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90967569.

The product of its digits is 167215104, while the sum is 69.

The spelling of 28927668498 in words is "twenty-eight billion, nine hundred twenty-seven million, six hundred sixty-eight thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 53 106 159 318 90967511 181935022 272902533 545805066 4821278083 9642556166 14463834249 28927668498