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1312022323 = 19950912953
BaseRepresentation
bin100111000110011…
…1101111100110011
310101102210122021101
41032030331330303
510141334203243
6334105105231
744341001653
oct11614757463
93342718241
101312022323
11613669877
12307488217
1317ba87191
14c6370363
157a2b754d
hex4e33df33

1312022323 has 8 divisors (see below), whose sum is σ = 1321308000. Its totient is φ = 1302763968.

The previous prime is 1312022303. The next prime is 1312022339. The reversal of 1312022323 is 3232202131.

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 1312022323 - 29 = 1312021811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312022323.

It is not an unprimeable number, because it can be changed into a prime (1312022303) 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 7 ways as a sum of consecutive naturals, for example, 94815 + ... + 107767.

It is an arithmetic number, because the mean of its divisors is an integer number (165163500).

Almost surely, 21312022323 is an apocalyptic number.

1312022323 is a deficient number, since it is larger than the sum of its proper divisors (9285677).

1312022323 is a wasteful number, since it uses less digits than its factorization.

1312022323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13661.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1312022323 is about 36221.8486966085. The cubic root of 1312022323 is about 1094.7469437399.

Adding to 1312022323 its reverse (3232202131), we get a palindrome (4544224454).

The spelling of 1312022323 in words is "one billion, three hundred twelve million, twenty-two thousand, three hundred twenty-three".

Divisors: 1 199 509 12953 101291 2577647 6593077 1312022323