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20231103210 = 2351574295351
BaseRepresentation
bin10010110101110111…
…100010001011101010
31221012221101112020220
4102311313202023222
5312413130300320
613143302430510
71314226353123
oct226567421352
957187345226
1020231103210
118641a2630a
123b07432436
131ba55320b6
14d9cc8304a
157d61bae40
hex4b5de22ea

20231103210 has 32 divisors (see below), whose sum is σ = 48863924352. Its totient is φ = 5360596800.

The previous prime is 20231103187. The next prime is 20231103287. The reversal of 20231103210 is 1230113202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20231103210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2142966 + ... + 2152385.

It is an arithmetic number, because the mean of its divisors is an integer number (1526997636).

Almost surely, 220231103210 is an apocalyptic number.

20231103210 is an abundant number, since it is smaller than the sum of its proper divisors (28632821142).

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

20231103210 is a wasteful number, since it uses less digits than its factorization.

20231103210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295518.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20231103210 its reverse (1230113202), we get a palindrome (21461216412).

The spelling of 20231103210 in words is "twenty billion, two hundred thirty-one million, one hundred three thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 157 314 471 785 942 1570 2355 4710 4295351 8590702 12886053 21476755 25772106 42953510 64430265 128860530 674370107 1348740214 2023110321 3371850535 4046220642 6743701070 10115551605 20231103210