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490615452 = 223213628207
BaseRepresentation
bin11101001111100…
…011001010011100
31021012011211212200
4131033203022130
52001044143302
6120403331500
715105106515
oct3517431234
91235154780
10490615452
11231a37718
12118380b90
137a84a702
1449231a0c
152d11281c
hex1d3e329c

490615452 has 18 divisors (see below), whose sum is σ = 1240166928. Its totient is φ = 163538472.

The previous prime is 490615451. The next prime is 490615453. The reversal of 490615452 is 254516094.

It is an interprime number because it is at equal distance from previous prime (490615451) and next prime (490615453).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 13628207 = 490615452 / (4 + 9 + 0 + 6 + 1 + 5 + 4 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490615451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6814068 + ... + 6814139.

Almost surely, 2490615452 is an apocalyptic number.

It is an amenable number.

490615452 is an abundant number, since it is smaller than the sum of its proper divisors (749551476).

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

490615452 is a wasteful number, since it uses less digits than its factorization.

490615452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13628217 (or 13628212 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 490615452 is about 22149.8409023632. The cubic root of 490615452 is about 788.7034503618.

The spelling of 490615452 in words is "four hundred ninety million, six hundred fifteen thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 13628207 27256414 40884621 54512828 81769242 122653863 163538484 245307726 490615452