Search a number
-
+
42774940490 = 25173120693923
BaseRepresentation
bin100111110101100101…
…011100101101001010
311002102001121010020012
4213311211130231022
51200100341043430
631352303231522
73043000665212
oct476545345512
9132361533205
1042774940490
111716037a997
1283592a85a2
134058c47499
1420dad4b242
1511a5421695
hex9f595cb4a

42774940490 has 64 divisors (see below), whose sum is σ = 84215946240. Its totient is φ = 15572536320.

The previous prime is 42774940487. The next prime is 42774940511. The reversal of 42774940490 is 9404947724.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10901669 + ... + 10905591.

It is an arithmetic number, because the mean of its divisors is an integer number (1315874160).

Almost surely, 242774940490 is an apocalyptic number.

42774940490 is a deficient number, since it is larger than the sum of its proper divisors (41441005750).

42774940490 is a wasteful number, since it uses less digits than its factorization.

42774940490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6047.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 42774940490 in words is "forty-two billion, seven hundred seventy-four million, nine hundred forty thousand, four hundred ninety".

Divisors: 1 2 5 10 17 31 34 62 85 155 170 310 527 1054 2069 2635 3923 4138 5270 7846 10345 19615 20690 35173 39230 64139 66691 70346 121613 128278 133382 175865 243226 320695 333455 351730 608065 641390 666910 1090363 1216130 2067421 2180726 4134842 5451815 8116687 10337105 10903630 16233374 20674210 40583435 81166870 137983679 251617297 275967358 503234594 689918395 1258086485 1379836790 2516172970 4277494049 8554988098 21387470245 42774940490