Search a number
-
+
20123114444401 = 45191445290311
BaseRepresentation
bin1001001001101010001110…
…00101101001011001110001
32122020202021110000021200211
410210311013011221121301
510114144114244210101
6110444233043544121
74144563351362053
oct444650705513161
978222243007624
1020123114444401
11645918a54a351
12230bbb238b041
13b2c7a87b28c7
144d7d6d07b8d3
1524d6ad489c51
hex124d47169671

20123114444401 has 4 divisors (see below), whose sum is σ = 20123559779904. Its totient is φ = 20122669108900.

The previous prime is 20123114444399. The next prime is 20123114444449. The reversal of 20123114444401 is 10444441132102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20123114444401 - 21 = 20123114444399 is a prime.

It is a super-4 number, since 4×201231144444014 (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123114414401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222599965 + ... + 222690346.

It is an arithmetic number, because the mean of its divisors is an integer number (5030889944976).

Almost surely, 220123114444401 is an apocalyptic number.

It is an amenable number.

20123114444401 is a deficient number, since it is larger than the sum of its proper divisors (445335503).

20123114444401 is an equidigital number, since it uses as much as digits as its factorization.

20123114444401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445335502.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 20123114444401 its reverse (10444441132102), we get a palindrome (30567555576503).

The spelling of 20123114444401 in words is "twenty trillion, one hundred twenty-three billion, one hundred fourteen million, four hundred forty-four thousand, four hundred one".

Divisors: 1 45191 445290311 20123114444401