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1023808008 = 233194215333
BaseRepresentation
bin111101000001100…
…001001000001000
32122100110211120010
4331001201020020
54044043324013
6245331431520
734241136666
oct7501411010
92570424503
101023808008
11485a05123
12246a555a0
13134154972
1499d87c36
155ed357c3
hex3d061208

1023808008 has 64 divisors (see below), whose sum is σ = 2701137600. Its totient is φ = 322479360.

The previous prime is 1023807979. The next prime is 1023808033. The reversal of 1023808008 is 8008083201.

It is a Cunningham number, because it is equal to 319972-1.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189310 + ... + 194642.

It is an arithmetic number, because the mean of its divisors is an integer number (42205275).

Almost surely, 21023808008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023808008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1350568800).

1023808008 is an abundant number, since it is smaller than the sum of its proper divisors (1677329592).

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

1023808008 is a wasteful number, since it uses less digits than its factorization.

1023808008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782 (or 5778 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1023808008 is about 31996.9999843735. Note that the first 4 decimals coincide. The cubic root of 1023808008 is about 1007.8738425509.

The spelling of 1023808008 in words is "one billion, twenty-three million, eight hundred eight thousand, eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 421 456 842 1263 1684 2526 3368 5052 5333 7999 10104 10666 15998 15999 21332 23997 31996 31998 42664 47994 63992 63996 95988 101327 127992 191976 202654 303981 405308 607962 810616 1215924 2245193 2431848 4490386 6735579 8980772 13471158 17961544 26942316 42658667 53884632 85317334 127976001 170634668 255952002 341269336 511904004 1023808008