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20153045248 = 28719591901
BaseRepresentation
bin10010110001001101…
…110001000100000000
31221000111111202212021
4102301031301010000
5312233134421443
613131433411224
71312261025650
oct226115610400
957014452767
1020153045248
1186019611a6
123aa5269b14
131b9230195b
14d92764360
157ce3ec9ed
hex4b1371100

20153045248 has 72 divisors (see below), whose sum is σ = 48393907520. Its totient is φ = 8182425600.

The previous prime is 20153045239. The next prime is 20153045273. The reversal of 20153045248 is 84254035102.

It is a super-2 number, since 2×201530452482 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261903 + ... + 329998.

Almost surely, 220153045248 is an apocalyptic number.

20153045248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20153045248 is an abundant number, since it is smaller than the sum of its proper divisors (28240862272).

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

20153045248 is an equidigital number, since it uses as much as digits as its factorization.

20153045248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591943 (or 591929 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 20153045248 in words is "twenty billion, one hundred fifty-three million, forty-five thousand, two hundred forty-eight".

Divisors: 1 2 4 7 8 14 16 19 28 32 38 56 64 76 112 128 133 152 224 256 266 304 448 532 608 896 1064 1216 1792 2128 2432 4256 4864 8512 17024 34048 591901 1183802 2367604 4143307 4735208 8286614 9470416 11246119 16573228 18940832 22492238 33146456 37881664 44984476 66292912 75763328 78722833 89968952 132585824 151526656 157445666 179937904 265171648 314891332 359875808 530343296 629782664 719751616 1060686592 1259565328 1439503232 2519130656 2879006464 5038261312 10076522624 20153045248