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28858233064390 = 2519426773558953
BaseRepresentation
bin1101000111111000101001…
…01110110000101111000110
310210011211010212202211021021
412203330110232300233012
512240303130131030030
6141213142251141354
76035636626514122
oct643742456605706
9123154125684237
1028858233064390
119216787261164
1232a0b03a4485a
1313144204ca3c2
1471aa62ba8582
15350a0766997a
hex1a3f14bb0bc6

28858233064390 has 32 divisors (see below), whose sum is σ = 54680053972320. Its totient is φ = 10935492159744.

The previous prime is 28858233064379. The next prime is 28858233064393. The reversal of 28858233064390 is 9346033285882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28858233064393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6329154 + ... + 9888106.

It is an arithmetic number, because the mean of its divisors is an integer number (1708751686635).

Almost surely, 228858233064390 is an apocalyptic number.

28858233064390 is a deficient number, since it is larger than the sum of its proper divisors (25821820907930).

28858233064390 is a wasteful number, since it uses less digits than its factorization.

28858233064390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601656.

The product of its (nonzero) digits is 59719680, while the sum is 61.

The spelling of 28858233064390 in words is "twenty-eight trillion, eight hundred fifty-eight billion, two hundred thirty-three million, sixty-four thousand, three hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 42677 85354 213385 426770 810863 1621726 3558953 4054315 7117906 8108630 17794765 35589530 67620107 135240214 338100535 676201070 151885437181 303770874362 759427185905 1518854371810 2885823306439 5771646612878 14429116532195 28858233064390