Search a number
-
+
1948000087 = 11374786241
BaseRepresentation
bin111010000011100…
…0001111101010111
312000202111122202101
41310013001331113
512442142000322
6521144222531
766162504355
oct16407017527
95022448671
101948000087
1190a660330
1246446aa47
1325076b897
14146a007d5
15b6040327
hex741c1f57

1948000087 has 8 divisors (see below), whose sum is σ = 2182526352. Its totient is φ = 1723046400.

The previous prime is 1948000079. The next prime is 1948000127. The reversal of 1948000087 is 7800008491.

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

It is a cyclic number.

It is not a de Polignac number, because 1948000087 - 23 = 1948000079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948000037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2392714 + ... + 2393527.

It is an arithmetic number, because the mean of its divisors is an integer number (272815794).

Almost surely, 21948000087 is an apocalyptic number.

1948000087 is a deficient number, since it is larger than the sum of its proper divisors (234526265).

1948000087 is a wasteful number, since it uses less digits than its factorization.

1948000087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786289.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1948000087 is about 44136.1539670144. The cubic root of 1948000087 is about 1248.9057275605.

The spelling of 1948000087 in words is "one billion, nine hundred forty-eight million, eighty-seven", and thus it is an aban number.

Divisors: 1 11 37 407 4786241 52648651 177090917 1948000087