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537205127992 = 23132397341071
BaseRepresentation
bin1111101000100111110…
…10111011101100111000
31220100121202020001002221
413310103322323230320
532300144003043432
61050442202133424
753545305150301
oct7642372735470
91810552201087
10537205127992
11197911320865
1288144ab1274
133b87317a200
141c0025437a8
15de92094b97
hex7d13ebbb38

537205127992 has 24 divisors (see below), whose sum is σ = 1090701242640. Its totient is φ = 247940827680.

The previous prime is 537205127951. The next prime is 537205127993. The reversal of 537205127992 is 299721502735.

It is a super-2 number, since 2×5372051279922 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537205127993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 198669184 + ... + 198671887.

It is an arithmetic number, because the mean of its divisors is an integer number (45445885110).

Almost surely, 2537205127992 is an apocalyptic number.

537205127992 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

537205127992 is an abundant number, since it is smaller than the sum of its proper divisors (553496114648).

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

537205127992 is a wasteful number, since it uses less digits than its factorization.

537205127992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397341103 (or 397341086 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 52.

The spelling of 537205127992 in words is "five hundred thirty-seven billion, two hundred five million, one hundred twenty-seven thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 13 26 52 104 169 338 676 1352 397341071 794682142 1589364284 3178728568 5165433923 10330867846 20661735692 41323471384 67150640999 134301281998 268602563996 537205127992