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20231020040707 = 72890145720101
BaseRepresentation
bin1001001100110011001101…
…10000110101001000000011
32122122001210120102112022201
410212121212300311020003
510122431112112300312
6111010000255214031
74155433351664230
oct446314660651003
978561716375281
1020231020040707
11649aa22433a13
122328aa7817317
13b39a14100c88
144dd288030787
152513c6773557
hex126666c35203

20231020040707 has 4 divisors (see below), whose sum is σ = 23121165760816. Its totient is φ = 17340874320600.

The previous prime is 20231020040687. The next prime is 20231020040761. The reversal of 20231020040707 is 70704002013202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20231020040707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20231020040767) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1445072860044 + ... + 1445072860057.

It is an arithmetic number, because the mean of its divisors is an integer number (5780291440204).

Almost surely, 220231020040707 is an apocalyptic number.

20231020040707 is a deficient number, since it is larger than the sum of its proper divisors (2890145720109).

20231020040707 is an equidigital number, since it uses as much as digits as its factorization.

20231020040707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890145720108.

The product of its (nonzero) digits is 4704, while the sum is 28.

Adding to 20231020040707 its reverse (70704002013202), we get a palindrome (90935022053909).

The spelling of 20231020040707 in words is "twenty trillion, two hundred thirty-one billion, twenty million, forty thousand, seven hundred seven".

Divisors: 1 7 2890145720101 20231020040707