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490012911 = 32193282103
BaseRepresentation
bin11101001101010…
…000000011101111
31021011001020100100
4131031100003233
52000420403121
6120342402143
715100020033
oct3515200357
91234036310
10490012911
11231665a53
12118130353
137a69938b
14491161c3
152d044026
hex1d3500ef

490012911 has 12 divisors (see below), whose sum is σ = 711466288. Its totient is φ = 324981504.

The previous prime is 490012909. The next prime is 490012933. The reversal of 490012911 is 119210094.

It is not a de Polignac number, because 490012911 - 21 = 490012909 is a prime.

It is a super-2 number, since 2×4900129112 = 480225305893387842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490012111) 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, 139315 + ... + 142788.

Almost surely, 2490012911 is an apocalyptic number.

490012911 is a deficient number, since it is larger than the sum of its proper divisors (221453377).

490012911 is a wasteful number, since it uses less digits than its factorization.

490012911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282302 (or 282299 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 490012911 is about 22136.2352490210. The cubic root of 490012911 is about 788.3804405289.

The spelling of 490012911 in words is "four hundred ninety million, twelve thousand, nine hundred eleven".

Divisors: 1 3 9 193 579 1737 282103 846309 2538927 54445879 163337637 490012911