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1316552123 = 1969292217
BaseRepresentation
bin100111001111000…
…1111110110111011
310101202022202222202
41032132033312323
510144014131443
6334350140415
744424336245
oct11636176673
93352282882
101316552123
11616183107
12308ab170b
1317c9b1c33
14c6bcd095
157a8ae7b8
hex4e78fdbb

1316552123 has 4 divisors (see below), whose sum is σ = 1385844360. Its totient is φ = 1247259888.

The previous prime is 1316552101. The next prime is 1316552129. The reversal of 1316552123 is 3212556131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3212556131 = 4582170111.

It is a cyclic number.

It is not a de Polignac number, because 1316552123 - 210 = 1316551099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1316552129) 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, 34646090 + ... + 34646127.

It is an arithmetic number, because the mean of its divisors is an integer number (346461090).

Almost surely, 21316552123 is an apocalyptic number.

1316552123 is a deficient number, since it is larger than the sum of its proper divisors (69292237).

1316552123 is an equidigital number, since it uses as much as digits as its factorization.

1316552123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69292236.

The product of its digits is 5400, while the sum is 29.

The square root of 1316552123 is about 36284.3233780100. The cubic root of 1316552123 is about 1096.0053797998.

The spelling of 1316552123 in words is "one billion, three hundred sixteen million, five hundred fifty-two thousand, one hundred twenty-three".

Divisors: 1 19 69292217 1316552123