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490775418837 = 321121459308887
BaseRepresentation
bin1110010010001000111…
…11101001011111010101
31201220202222112102210100
413021010133221133111
531020102001400322
61013243100244313
750312605141614
oct7110437513725
91656688472710
10490775418837
1117a155a25100
127b147840699
1337383cb7b22
1419a7a06b87b
15cb75d93dac
hex72447e97d5

490775418837 has 36 divisors (see below), whose sum is σ = 779738333920. Its totient is φ = 297234820080.

The previous prime is 490775418829. The next prime is 490775418841. The reversal of 490775418837 is 738814577094.

490775418837 is a `hidden beast` number, since 4 + 9 + 0 + 7 + 7 + 541 + 8 + 83 + 7 = 666.

It is not a de Polignac number, because 490775418837 - 23 = 490775418829 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490775418827) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1434408 + ... + 1743294.

Almost surely, 2490775418837 is an apocalyptic number.

It is an amenable number.

490775418837 is a deficient number, since it is larger than the sum of its proper divisors (288962915083).

490775418837 is a wasteful number, since it uses less digits than its factorization.

490775418837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310374 (or 310360 counting only the distinct ones).

The product of its (nonzero) digits is 47416320, while the sum is 63.

The spelling of 490775418837 in words is "four hundred ninety billion, seven hundred seventy-five million, four hundred eighteen thousand, eight hundred thirty-seven".

Divisors: 1 3 9 11 33 99 121 363 1089 1459 4377 13131 16049 48147 144441 176539 308887 529617 926661 1588851 2779983 3397757 10193271 30579813 37375327 112125981 336377943 450666133 1351998399 4055995197 4957327463 14871982389 44615947167 54530602093 163591806279 490775418837