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200415020123 = 637931417937
BaseRepresentation
bin1011101010100110101…
…0101000010001011011
3201011022021012220002002
42322221222220101123
511240422221120443
6232022553231215
720323320364133
oct2725152502133
9634267186062
10200415020123
1177aa5065a3a
1232a1270250b
1315b8c2bc306
1499b3275ac3
15532eb032b8
hex2ea9aa845b

200415020123 has 4 divisors (see below), whose sum is σ = 200446444440. Its totient is φ = 200383595808.

The previous prime is 200415020053. The next prime is 200415020153. The reversal of 200415020123 is 321020514002.

200415020123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321020514002 = 2160510257001.

It is a cyclic number.

It is not a de Polignac number, because 200415020123 - 210 = 200415019099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200415020095 and 200415020104.

It is not an unprimeable number, because it can be changed into a prime (200415020153) 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, 15702590 + ... + 15715347.

It is an arithmetic number, because the mean of its divisors is an integer number (50111611110).

Almost surely, 2200415020123 is an apocalyptic number.

200415020123 is a deficient number, since it is larger than the sum of its proper divisors (31424317).

200415020123 is an equidigital number, since it uses as much as digits as its factorization.

200415020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31424316.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 200415020123 its reverse (321020514002), we get a palindrome (521435534125).

The spelling of 200415020123 in words is "two hundred billion, four hundred fifteen million, twenty thousand, one hundred twenty-three".

Divisors: 1 6379 31417937 200415020123