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981792201 = 31325174159
BaseRepresentation
bin111010100001001…
…111010111001001
32112102102012201010
4322201033113021
54002314322301
6241231114133
733221044635
oct7241172711
92472365633
10981792201
11464218015
12234972949
13128533740
149456bdc5
155b2d65d6
hex3a84f5c9

981792201 has 8 divisors (see below), whose sum is σ = 1409752960. Its totient is φ = 604179792.

The previous prime is 981792173. The next prime is 981792221. The reversal of 981792201 is 102297189.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 981792201 - 29 = 981791689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 25174159 = 981792201 / (9 + 8 + 1 + 7 + 9 + 2 + 2 + 0 + 1).

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 981792201.

It is not an unprimeable number, because it can be changed into a prime (981792221) 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, 12587041 + ... + 12587118.

It is an arithmetic number, because the mean of its divisors is an integer number (176219120).

Almost surely, 2981792201 is an apocalyptic number.

It is an amenable number.

981792201 is a deficient number, since it is larger than the sum of its proper divisors (427960759).

981792201 is a wasteful number, since it uses less digits than its factorization.

981792201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25174175.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 981792201 is about 31333.5634902895. The cubic root of 981792201 is about 993.8935204762.

The spelling of 981792201 in words is "nine hundred eighty-one million, seven hundred ninety-two thousand, two hundred one".

Divisors: 1 3 13 39 25174159 75522477 327264067 981792201