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19297852392 = 2337138836013
BaseRepresentation
bin10001111110001111…
…011101101111101000
31211210220022110210210
4101332033131233220
5304010222234032
612510523541120
71252135016220
oct217617355750
954726273723
1019297852392
118203153145
1238a698a7a0
131a87095b90
14d10d4d080
1577e2c22cc
hex47e3ddbe8

19297852392 has 64 divisors (see below), whose sum is σ = 59378014080. Its totient is φ = 5089542912.

The previous prime is 19297852381. The next prime is 19297852393. The reversal of 19297852392 is 29325879291.

It is not an unprimeable number, because it can be changed into a prime (19297852393) 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, 4415823 + ... + 4420190.

It is an arithmetic number, because the mean of its divisors is an integer number (927781470).

Almost surely, 219297852392 is an apocalyptic number.

19297852392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19297852392 is an abundant number, since it is smaller than the sum of its proper divisors (40080161688).

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

19297852392 is a wasteful number, since it uses less digits than its factorization.

19297852392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8836042 (or 8836038 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 57.

The spelling of 19297852392 in words is "nineteen billion, two hundred ninety-seven million, eight hundred fifty-two thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 42 52 56 78 84 91 104 156 168 182 273 312 364 546 728 1092 2184 8836013 17672026 26508039 35344052 53016078 61852091 70688104 106032156 114868169 123704182 185556273 212064312 229736338 247408364 344604507 371112546 459472676 494816728 689209014 742225092 804077183 918945352 1378418028 1484450184 1608154366 2412231549 2756836056 3216308732 4824463098 6432617464 9648926196 19297852392