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931408201 = 4903189967
BaseRepresentation
bin110111100001000…
…010100101001001
32101220121102212001
4313201002211021
53401420030301
6232231151001
732036560543
oct6741024511
92356542761
10931408201
11438834849
1221bb15461
1311ac72619
148b9b4693
1556b82c01
hex37842949

931408201 has 4 divisors (see below), whose sum is σ = 931603072. Its totient is φ = 931213332.

The previous prime is 931408187. The next prime is 931408211. The reversal of 931408201 is 102804139.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102804139 = 619166081.

It is a cyclic number.

It is not a de Polignac number, because 931408201 - 27 = 931408073 is a prime.

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 931408201.

It is not an unprimeable number, because it can be changed into a prime (931408211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90081 + ... + 99886.

It is an arithmetic number, because the mean of its divisors is an integer number (232900768).

Almost surely, 2931408201 is an apocalyptic number.

It is an amenable number.

931408201 is a deficient number, since it is larger than the sum of its proper divisors (194871).

931408201 is a wasteful number, since it uses less digits than its factorization.

931408201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194870.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 931408201 is about 30518.9809954395. The cubic root of 931408201 is about 976.5924276734.

The spelling of 931408201 in words is "nine hundred thirty-one million, four hundred eight thousand, two hundred one".

Divisors: 1 4903 189967 931408201