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490153249 = 1816913919
BaseRepresentation
bin11101001101110…
…010010100100001
31021011022100212001
4131031302110201
52000434400444
6120345404001
715101143135
oct3515622441
91234270761
10490153249
11231751433
12118199601
137a718211
14491513c5
152d0708d4
hex1d372521

490153249 has 8 divisors (see below), whose sum is σ = 493700480. Its totient is φ = 486615600.

The previous prime is 490153247. The next prime is 490153277. The reversal of 490153249 is 942351094.

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

It is a cyclic number.

It is not a de Polignac number, because 490153249 - 21 = 490153247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490153247) 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, 123112 + ... + 127030.

It is an arithmetic number, because the mean of its divisors is an integer number (61712560).

Almost surely, 2490153249 is an apocalyptic number.

It is an amenable number.

490153249 is a deficient number, since it is larger than the sum of its proper divisors (3547231).

490153249 is a wasteful number, since it uses less digits than its factorization.

490153249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 490153249 is about 22139.4048926343. The cubic root of 490153249 is about 788.4556964873.

The spelling of 490153249 in words is "four hundred ninety million, one hundred fifty-three thousand, two hundred forty-nine".

Divisors: 1 181 691 3919 125071 709339 2708029 490153249