Search a number
-
+
42987042901 = 1141293325307
BaseRepresentation
bin101000000010001110…
…100011100001010101
311002221211201001001001
4220002032203201111
51201014140333101
631425321303301
73051154556455
oct500216434125
9132854631031
1042987042901
111725a079640
1283b8334b31
134090b7b27a
14211b19dd65
1511b8d6b901
hexa023a3855

42987042901 has 16 divisors (see below), whose sum is σ = 48202838208. Its totient is φ = 37995740800.

The previous prime is 42987042899. The next prime is 42987042937. The reversal of 42987042901 is 10924078924.

It is a cyclic number.

It is not a de Polignac number, because 42987042901 - 21 = 42987042899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42987042971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30511 + ... + 294796.

It is an arithmetic number, because the mean of its divisors is an integer number (3012677388).

Almost surely, 242987042901 is an apocalyptic number.

42987042901 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

42987042901 is a deficient number, since it is larger than the sum of its proper divisors (5215795307).

42987042901 is a wasteful number, since it uses less digits than its factorization.

42987042901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325652.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 42987042901 in words is "forty-two billion, nine hundred eighty-seven million, forty-two thousand, nine hundred one".

Divisors: 1 11 41 293 451 3223 12013 132143 325307 3578377 13337587 95314951 146713457 1048464461 3907912991 42987042901