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1687468438001 = 12912213590647
BaseRepresentation
bin11000100011100100111…
…101001111000111110001
312222022122120120111220002
4120203210331033013301
5210121413410004001
63331113504555345
7232626020026253
oct30434475170761
95868576514802
101687468438001
115a0718a39585
12233061922b55
13c3187417c28
145b9612bdcd3
152dd6559d46b
hex188e4f4f1f1

1687468438001 has 8 divisors (see below), whose sum is σ = 1689541516224. Its totient is φ = 1685396548080.

The previous prime is 1687468437881. The next prime is 1687468438003. The reversal of 1687468438001 is 1008348647861.

It is a happy number.

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 1687468438001 - 210 = 1687468436977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1687468438003) 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, 2561660 + ... + 3152306.

It is an arithmetic number, because the mean of its divisors is an integer number (211192689528).

Almost surely, 21687468438001 is an apocalyptic number.

It is an amenable number.

1687468438001 is a deficient number, since it is larger than the sum of its proper divisors (2073078223).

1687468438001 is a wasteful number, since it uses less digits than its factorization.

1687468438001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594151.

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 1687468438001 in words is "one trillion, six hundred eighty-seven billion, four hundred sixty-eight million, four hundred thirty-eight thousand, one".

Divisors: 1 1291 2213 590647 2856983 762525277 1307101811 1687468438001