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672942616201 = 2085732264593
BaseRepresentation
bin10011100101011101000…
…00010110111010001001
32101022222112020212221001
421302232200112322021
542011141302204301
61233051235415001
766422100600442
oct11625640267211
92338875225831
10672942616201
1123a436621789
12aa507154461
134b5c591717b
14247dba062c9
1512788989c01
hex9cae816e89

672942616201 has 4 divisors (see below), whose sum is σ = 672974901652. Its totient is φ = 672910330752.

The previous prime is 672942616147. The next prime is 672942616211. The reversal of 672942616201 is 102616249276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 606566822976 + 66375793225 = 778824^2 + 257635^2 .

It is a cyclic number.

It is not a de Polignac number, because 672942616201 - 217 = 672942485129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672942616211) 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 3 ways as a sum of consecutive naturals, for example, 16111440 + ... + 16153153.

It is an arithmetic number, because the mean of its divisors is an integer number (168243725413).

Almost surely, 2672942616201 is an apocalyptic number.

It is an amenable number.

672942616201 is a deficient number, since it is larger than the sum of its proper divisors (32285451).

672942616201 is a wasteful number, since it uses less digits than its factorization.

672942616201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32285450.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 672942616201 in words is "six hundred seventy-two billion, nine hundred forty-two million, six hundred sixteen thousand, two hundred one".

Divisors: 1 20857 32264593 672942616201