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1022252423 = 1375974297
BaseRepresentation
bin111100111011100…
…101010110000111
32122020112210200212
4330323211112013
54043144034143
6245234230035
734222000523
oct7473452607
92566483625
101022252423
11485042415
1224642531b
13133a2b8ba
1499aa0d83
155eb29918
hex3cee5587

1022252423 has 4 divisors (see below), whose sum is σ = 1022340480. Its totient is φ = 1022164368.

The previous prime is 1022252419. The next prime is 1022252461. The reversal of 1022252423 is 3242522201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3242522201 = 18011800401.

It is a cyclic number.

It is not a de Polignac number, because 1022252423 - 22 = 1022252419 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 (1022252123) 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, 23390 + ... + 50907.

It is an arithmetic number, because the mean of its divisors is an integer number (255585120).

Almost surely, 21022252423 is an apocalyptic number.

1022252423 is a deficient number, since it is larger than the sum of its proper divisors (88057).

1022252423 is an equidigital number, since it uses as much as digits as its factorization.

1022252423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88056.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1022252423 is about 31972.6824492409. The cubic root of 1022252423 is about 1007.3631256485.

Adding to 1022252423 its reverse (3242522201), we get a palindrome (4264774624).

The spelling of 1022252423 in words is "one billion, twenty-two million, two hundred fifty-two thousand, four hundred twenty-three".

Divisors: 1 13759 74297 1022252423