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28660424486 = 219754221697
BaseRepresentation
bin11010101100010010…
…110101111100100110
32201222101122102020012
4122230102311330212
5432144032040421
621055540210222
72033142405611
oct325422657446
981871572205
1028660424486
1111178076131
12567a399972
1329199b1875
14155c585178
15b2b21c95b
hex6ac4b5f26

28660424486 has 8 divisors (see below), whose sum is σ = 45253301880. Its totient is φ = 13575990528.

The previous prime is 28660424483. The next prime is 28660424489. The reversal of 28660424486 is 68442406682.

It is an interprime number because it is at equal distance from previous prime (28660424483) and next prime (28660424489).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28660424483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377110811 + ... + 377110886.

It is an arithmetic number, because the mean of its divisors is an integer number (5656662735).

Almost surely, 228660424486 is an apocalyptic number.

28660424486 is a deficient number, since it is larger than the sum of its proper divisors (16592877394).

28660424486 is a wasteful number, since it uses less digits than its factorization.

28660424486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754221718.

The product of its (nonzero) digits is 3538944, while the sum is 50.

The spelling of 28660424486 in words is "twenty-eight billion, six hundred sixty million, four hundred twenty-four thousand, four hundred eighty-six".

Divisors: 1 2 19 38 754221697 1508443394 14330212243 28660424486