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490040043 = 3293955579
BaseRepresentation
bin11101001101010…
…110101011101011
31021011002121120020
4131031112223223
52000422240133
6120343131523
715100162113
oct3515265353
91234077506
10490040043
11231684379
12118143ba3
137a6a882c
1449122043
152d04c0b3
hex1d356aeb

490040043 has 8 divisors (see below), whose sum is σ = 653620800. Its totient is φ = 326576328.

The previous prime is 490040009. The next prime is 490040059. The reversal of 490040043 is 340040094.

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

It is not a de Polignac number, because 490040043 - 225 = 456485611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 490039995 and 490040022.

It is not an unprimeable number, because it can be changed into a prime (490040063) 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, 18973 + ... + 36606.

It is an arithmetic number, because the mean of its divisors is an integer number (81702600).

Almost surely, 2490040043 is an apocalyptic number.

490040043 is a deficient number, since it is larger than the sum of its proper divisors (163580757).

490040043 is a wasteful number, since it uses less digits than its factorization.

490040043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58521.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 490040043 is about 22136.8480818747. The cubic root of 490040043 is about 788.3949911274.

The spelling of 490040043 in words is "four hundred ninety million, forty thousand, forty-three".

Divisors: 1 3 2939 8817 55579 166737 163346681 490040043