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2122144423 = 7476450287
BaseRepresentation
bin111111001111101…
…0101101010100111
312110220012002212121
41332133111222213
513321232110143
6550324530411
7103405633660
oct17637255247
95426162777
102122144423
11999993573
124b2850a07
1327a872379
14161bb2367
15c648d7ed
hex7e7d5aa7

2122144423 has 8 divisors (see below), whose sum is σ = 2476910592. Its totient is φ = 1780278936.

The previous prime is 2122144417. The next prime is 2122144457. The reversal of 2122144423 is 3244412212.

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 2122144423 - 29 = 2122143911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122144403) 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, 3224815 + ... + 3225472.

It is an arithmetic number, because the mean of its divisors is an integer number (309613824).

Almost surely, 22122144423 is an apocalyptic number.

2122144423 is a deficient number, since it is larger than the sum of its proper divisors (354766169).

2122144423 is an equidigital number, since it uses as much as digits as its factorization.

2122144423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6450341.

The product of its digits is 3072, while the sum is 25.

The square root of 2122144423 is about 46066.7387927559. The cubic root of 2122144423 is about 1285.0646554093.

Adding to 2122144423 its reverse (3244412212), we get a palindrome (5366556635).

The spelling of 2122144423 in words is "two billion, one hundred twenty-two million, one hundred forty-four thousand, four hundred twenty-three".

Divisors: 1 7 47 329 6450287 45152009 303163489 2122144423