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23203003020 = 2235386716717
BaseRepresentation
bin10101100111000000…
…011011101010001100
32012220001112200101020
4111213000123222030
5340004432044040
614354224514140
71450664162061
oct254700335214
965801480336
1023203003020
11992754365a
1245b677b950
13225a1582b2
1411a1852c68
1590c05dcd0
hex56701ba8c

23203003020 has 24 divisors (see below), whose sum is σ = 64968408624. Its totient is φ = 6187467456.

The previous prime is 23203003013. The next prime is 23203003051. The reversal of 23203003020 is 2030030232.

It is a super-2 number, since 2×232030030202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 193358299 + ... + 193358418.

It is an arithmetic number, because the mean of its divisors is an integer number (2707017026).

Almost surely, 223203003020 is an apocalyptic number.

23203003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23203003020 is an abundant number, since it is smaller than the sum of its proper divisors (41765405604).

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

23203003020 is a wasteful number, since it uses less digits than its factorization.

23203003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386716729 (or 386716727 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 23203003020 its reverse (2030030232), we get a palindrome (25233033252).

The spelling of 23203003020 in words is "twenty-three billion, two hundred three million, three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 386716717 773433434 1160150151 1546866868 1933583585 2320300302 3867167170 4640600604 5800750755 7734334340 11601501510 23203003020