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20231320110 = 235674377337
BaseRepresentation
bin10010110101111000…
…010111001000101110
31221012221210112210020
4102311320113020232
5312413204220420
613143311223010
71314231245361
oct226570271056
957187715706
1020231320110
118642064271
123b07517a66
131ba55a9a41
14d9ccdc0d8
157d6210340
hex4b5e1722e

20231320110 has 16 divisors (see below), whose sum is σ = 48555168336. Its totient is φ = 5395018688.

The previous prime is 20231320073. The next prime is 20231320133. The reversal of 20231320110 is 1102313202.

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 20231320110.

It is a congruent number.

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, 337188639 + ... + 337188698.

It is an arithmetic number, because the mean of its divisors is an integer number (3034698021).

Almost surely, 220231320110 is an apocalyptic number.

20231320110 is an abundant number, since it is smaller than the sum of its proper divisors (28323848226).

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

20231320110 is a wasteful number, since it uses less digits than its factorization.

20231320110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674377347.

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

Adding to 20231320110 its reverse (1102313202), we get a palindrome (21333633312).

The spelling of 20231320110 in words is "twenty billion, two hundred thirty-one million, three hundred twenty thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 674377337 1348754674 2023132011 3371886685 4046264022 6743773370 10115660055 20231320110