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28615087248253 = 11103160726875849
BaseRepresentation
bin1101000000110011110000…
…00111000101001101111101
310202022120112122000120210121
412200121320013011031331
512222312144313421003
6140505331204334541
76012241352260522
oct640317007051575
9122276478016717
1028615087248253
119132654837780
1232619669a4451
1312c751147ba0c
1470cd987d7149
15349526464cbd
hex1a06781c537d

28615087248253 has 32 divisors (see below), whose sum is σ = 31556277043200. Its totient is φ = 25731143391360.

The previous prime is 28615087248203. The next prime is 28615087248257. The reversal of 28615087248253 is 35284278051682.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-28615087248253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28615087248191 and 28615087248200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28615087248257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4892301273 + ... + 4892307121.

It is an arithmetic number, because the mean of its divisors is an integer number (986133657600).

Almost surely, 228615087248253 is an apocalyptic number.

It is an amenable number.

28615087248253 is a deficient number, since it is larger than the sum of its proper divisors (2941189794947).

28615087248253 is a wasteful number, since it uses less digits than its factorization.

28615087248253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10257.

The product of its (nonzero) digits is 51609600, while the sum is 61.

The spelling of 28615087248253 in words is "twenty-eight trillion, six hundred fifteen billion, eighty-seven million, two hundred forty-eight thousand, two hundred fifty-three".

Divisors: 1 11 103 1133 1607 2687 5849 17677 29557 64339 165521 276761 602447 1820731 3044371 4318009 6626917 9399343 15716263 47498099 103392773 172878893 444754927 968132329 1618775089 4892304197 10649455619 17806525979 25256034641 277816381051 2601371568023 28615087248253