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20023201000 = 23531121271303
BaseRepresentation
bin10010101001011110…
…011100110011101000
31220200110012000001001
4102221132130303220
5312001414413000
613110514404344
71306123254205
oct225136346350
956613160031
1020023201000
118545636300
123a698906b4
131b7143c03a
14d7d404cac
157c2d0046a
hex4a979cce8

20023201000 has 192 divisors, whose sum is σ = 51946352640. Its totient is φ = 7218288000.

The previous prime is 20023200943. The next prime is 20023201027. The reversal of 20023201000 is 10232002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15366349 + ... + 15367651.

It is an arithmetic number, because the mean of its divisors is an integer number (270553920).

Almost surely, 220023201000 is an apocalyptic number.

20023201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20023201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25973176320).

20023201000 is an abundant number, since it is smaller than the sum of its proper divisors (31923151640).

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

20023201000 is a wasteful number, since it uses less digits than its factorization.

20023201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473 (or 1448 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 20023201000 its reverse (10232002), we get a palindrome (20033433002).

The spelling of 20023201000 in words is "twenty billion, twenty-three million, two hundred one thousand".