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490078001 = 7197946643
BaseRepresentation
bin11101001101011…
…111111100110001
31021011011112122002
4131031133330301
52000424444001
6120344023345
715100410560
oct3515377461
91234145562
10490078001
112316aa946
12118161b55
137a6bcbaa
1449131bd7
152d05846b
hex1d35ff31

490078001 has 16 divisors (see below), whose sum is σ = 597043200. Its totient is φ = 392912208.

The previous prime is 490077983. The next prime is 490078003. The reversal of 490078001 is 100870094.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-490078001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490078003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12815 + ... + 33828.

It is an arithmetic number, because the mean of its divisors is an integer number (37315200).

Almost surely, 2490078001 is an apocalyptic number.

It is an amenable number.

490078001 is a deficient number, since it is larger than the sum of its proper divisors (106965199).

490078001 is a wasteful number, since it uses less digits than its factorization.

490078001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46748.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 490078001 is about 22137.7054140667. The cubic root of 490078001 is about 788.4153466914.

The spelling of 490078001 in words is "four hundred ninety million, seventy-eight thousand, one".

Divisors: 1 7 19 79 133 553 1501 10507 46643 326501 886217 3684797 6203519 25793579 70011143 490078001