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28497007492576 = 257127218783449
BaseRepresentation
bin1100111101010111110100…
…00000100011110111100000
310201220021202110010111022021
412132223322000203313200
512213343332404230301
6140335202225351224
76000561261022210
oct636537200436740
9121807673114267
1028497007492576
1190975708a5637
123242ab2198514
1312b93440658bc
14707396508240
15346414d6a8a1
hex19eafa023de0

28497007492576 has 24 divisors (see below), whose sum is σ = 64118266858800. Its totient is φ = 12213003211008.

The previous prime is 28497007492573. The next prime is 28497007492631. The reversal of 28497007492576 is 67529470079482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28497007492573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63609391501 + ... + 63609391948.

It is an arithmetic number, because the mean of its divisors is an integer number (2671594452450).

Almost surely, 228497007492576 is an apocalyptic number.

It is an amenable number.

28497007492576 is an abundant number, since it is smaller than the sum of its proper divisors (35621259366224).

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

28497007492576 is a wasteful number, since it uses less digits than its factorization.

28497007492576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127218783466 (or 127218783458 counting only the distinct ones).

The product of its (nonzero) digits is 426746880, while the sum is 70.

The spelling of 28497007492576 in words is "twenty-eight trillion, four hundred ninety-seven billion, seven million, four hundred ninety-two thousand, five hundred seventy-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 127218783449 254437566898 508875133796 890531484143 1017750267592 1781062968286 2035500535184 3562125936572 4071001070368 7124251873144 14248503746288 28497007492576