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491372 = 227223109
BaseRepresentation
bin1110111111101101100
3220222000222
41313331230
5111210442
614310512
74114400
oct1677554
9828028
10491372
113061a2
121b8438
1314286b
14cb100
159a8d2
hex77f6c

491372 has 36 divisors (see below), whose sum is σ = 1053360. Its totient is φ = 199584.

The previous prime is 491371. The next prime is 491377. The reversal of 491372 is 273194.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (491371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4454 + ... + 4562.

It is an arithmetic number, because the mean of its divisors is an integer number (29260).

2491372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526680).

491372 is an abundant number, since it is smaller than the sum of its proper divisors (561988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491372 is a wasteful number, since it uses less digits than its factorization.

491372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 141 counting only the distinct ones).

The product of its digits is 1512, while the sum is 26.

The square root of 491372 is about 700.9793149587. The cubic root of 491372 is about 78.9108645898.

The spelling of 491372 in words is "four hundred ninety-one thousand, three hundred seventy-two".

Divisors: 1 2 4 7 14 23 28 46 49 92 98 109 161 196 218 322 436 644 763 1127 1526 2254 2507 3052 4508 5014 5341 10028 10682 17549 21364 35098 70196 122843 245686 491372