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53005075272 = 2333245393867
BaseRepresentation
bin110001010111010110…
…010100001101001000
312001211000101210221000
4301113112110031020
51332023244402042
640203350415000
73554341464102
oct612726241510
9161730353830
1053005075272
112052aa8a636
12a333361460
134cc9510386
1427cb898572
1515a35dc74c
hexc57594348

53005075272 has 32 divisors (see below), whose sum is σ = 147236320800. Its totient is φ = 17668358352.

The previous prime is 53005075271. The next prime is 53005075307. The reversal of 53005075272 is 27257050035.

It is a happy number.

53005075272 is a `hidden beast` number, since 5 + 30 + 0 + 507 + 52 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (53005075271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122696718 + ... + 122697149.

It is an arithmetic number, because the mean of its divisors is an integer number (4601135025).

Almost surely, 253005075272 is an apocalyptic number.

It is an amenable number.

53005075272 is an abundant number, since it is smaller than the sum of its proper divisors (94231245528).

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

53005075272 is a wasteful number, since it uses less digits than its factorization.

53005075272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245393882 (or 245393872 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The spelling of 53005075272 in words is "fifty-three billion, five million, seventy-five thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 245393867 490787734 736181601 981575468 1472363202 1963150936 2208544803 2944726404 4417089606 5889452808 6625634409 8834179212 13251268818 17668358424 26502537636 53005075272