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53428167672 = 23311919220217
BaseRepresentation
bin110001110000100100…
…010010001111111000
312002220111112010120220
4301300210102033320
51333410102331142
640313343020040
73600666634455
oct616044221770
9162814463526
1053428167672
1120727898180
12a430b9a620
1350660787c9
14282bb5082c
1515ca8132ec
hexc709123f8

53428167672 has 64 divisors (see below), whose sum is σ = 145872403200. Its totient is φ = 16172663040.

The previous prime is 53428167643. The next prime is 53428167677. The reversal of 53428167672 is 27676182435.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53428167677) 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, 132508 + ... + 352724.

It is an arithmetic number, because the mean of its divisors is an integer number (2279256300).

Almost surely, 253428167672 is an apocalyptic number.

It is an amenable number.

53428167672 is an abundant number, since it is smaller than the sum of its proper divisors (92444235528).

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

53428167672 is a wasteful number, since it uses less digits than its factorization.

53428167672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221156 (or 221152 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The spelling of 53428167672 in words is "fifty-three billion, four hundred twenty-eight million, one hundred sixty-seven thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 919 1838 2757 3676 5514 7352 10109 11028 20218 22056 30327 40436 60654 80872 121308 220217 242616 440434 660651 880868 1321302 1761736 2422387 2642604 4844774 5285208 7267161 9689548 14534322 19379096 29068644 58137288 202379423 404758846 607138269 809517692 1214276538 1619035384 2226173653 2428553076 4452347306 4857106152 6678520959 8904694612 13357041918 17809389224 26714083836 53428167672