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490151431 = 7116795009
BaseRepresentation
bin11101001101110…
…001111000000111
31021011022021100201
4131031301320013
52000434321211
6120345351331
715101134630
oct3515617007
91234267321
10490151431
11231750030
12118198547
137a717443
1449150887
152d0700c1
hex1d371e07

490151431 has 16 divisors (see below), whose sum is σ = 620225280. Its totient is φ = 376231680.

The previous prime is 490151401. The next prime is 490151461. The reversal of 490151431 is 134151094.

It is an interprime number because it is at equal distance from previous prime (490151401) and next prime (490151461).

It is not a de Polignac number, because 490151431 - 223 = 481762823 is a prime.

It is a super-2 number, since 2×4901514312 = 480496850622695522, which contains 22 as substring.

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 490151431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490151401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42346 + ... + 52663.

It is an arithmetic number, because the mean of its divisors is an integer number (38764080).

Almost surely, 2490151431 is an apocalyptic number.

490151431 is a deficient number, since it is larger than the sum of its proper divisors (130073849).

490151431 is a wasteful number, since it uses less digits than its factorization.

490151431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95094.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 490151431 is about 22139.3638345821. The cubic root of 490151431 is about 788.4547216804.

The spelling of 490151431 in words is "four hundred ninety million, one hundred fifty-one thousand, four hundred thirty-one".

Divisors: 1 7 11 67 77 469 737 5159 95009 665063 1045099 6365603 7315693 44559221 70021633 490151431