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20233530020 = 2251191970591
BaseRepresentation
bin10010110110000000…
…110010101010100100
31221020002221211012202
4102312000302222210
5312414240430040
613143430434032
71314256111304
oct226600625244
957202854182
1020233530020
118643333640
123b08202918
131ba5ba1892
14d9d315604
157d64ea015
hex4b6032aa4

20233530020 has 24 divisors (see below), whose sum is σ = 46353178368. Its totient is φ = 7357647200.

The previous prime is 20233530013. The next prime is 20233530041. The reversal of 20233530020 is 2003533202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20233529974 and 20233530001.

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, 45985076 + ... + 45985515.

It is an arithmetic number, because the mean of its divisors is an integer number (1931382432).

Almost surely, 220233530020 is an apocalyptic number.

20233530020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20233530020 is an abundant number, since it is smaller than the sum of its proper divisors (26119648348).

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

20233530020 is a wasteful number, since it uses less digits than its factorization.

20233530020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91970611 (or 91970609 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The spelling of 20233530020 in words is "twenty billion, two hundred thirty-three million, five hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 91970591 183941182 367882364 459852955 919705910 1011676501 1839411820 2023353002 4046706004 5058382505 10116765010 20233530020