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20231244023 = 193728778441
BaseRepresentation
bin10010110101111000…
…000100100011110111
31221012221122200102012
4102311320010203313
5312413144302043
613143305434435
71314230510504
oct226570044367
957187580365
1020231244023
118642012091
123b0749ba1b
131ba5581213
14d9ccbc4ab
157d61e7a18
hex4b5e048f7

20231244023 has 8 divisors (see below), whose sum is σ = 21871615920. Its totient is φ = 18648429120.

The previous prime is 20231244013. The next prime is 20231244037. The reversal of 20231244023 is 32044213202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20231244023 - 26 = 20231243959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20231244023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231244013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14388518 + ... + 14389923.

It is an arithmetic number, because the mean of its divisors is an integer number (2733951990).

Almost surely, 220231244023 is an apocalyptic number.

20231244023 is a deficient number, since it is larger than the sum of its proper divisors (1640371897).

20231244023 is a wasteful number, since it uses less digits than its factorization.

20231244023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28778497.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20231244023 its reverse (32044213202), we get a palindrome (52275457225).

The spelling of 20231244023 in words is "twenty billion, two hundred thirty-one million, two hundred forty-four thousand, twenty-three".

Divisors: 1 19 37 703 28778441 546790379 1064802317 20231244023