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16316931541 = 61354175541
BaseRepresentation
bin11110011001001000…
…01001110111010101
31120010011012000010211
433030210021313111
5231404113302131
611255040245421
71115230425661
oct171444116725
946104160124
1016316931541
116a13534199
1231b4610871
1317006318a1
14b0b0b18a1
1565774b5b1
hex3cc909dd5

16316931541 has 8 divisors (see below), whose sum is σ = 16589325368. Its totient is φ = 16044696000.

The previous prime is 16316931539. The next prime is 16316931613. The reversal of 16316931541 is 14513961361.

It can be written as a sum of positive squares in 4 ways, for example, as 41550916 + 16275380625 = 6446^2 + 127575^2 .

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 16316931541 - 21 = 16316931539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16316931494 and 16316931503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16316941541) 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, 178231 + ... + 253771.

It is an arithmetic number, because the mean of its divisors is an integer number (2073665671).

Almost surely, 216316931541 is an apocalyptic number.

It is an amenable number.

16316931541 is a deficient number, since it is larger than the sum of its proper divisors (272393827).

16316931541 is an equidigital number, since it uses as much as digits as its factorization.

16316931541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79143.

The product of its digits is 58320, while the sum is 40.

The spelling of 16316931541 in words is "sixteen billion, three hundred sixteen million, nine hundred thirty-one thousand, five hundred forty-one".

Divisors: 1 61 3541 75541 216001 4608001 267490681 16316931541