Search a number
-
+
1455285381 = 311139317263
BaseRepresentation
bin101011010111101…
…1110010010000101
310202102101011020120
41112233132102011
510440023113011
6400223452153
751030502344
oct12657362205
93672334216
101455285381
1168751a4a0
12347457059
131a2667814
14db3c3b5b
1587b65a06
hex56bde485

1455285381 has 16 divisors (see below), whose sum is σ = 2132014080. Its totient is φ = 875643120.

The previous prime is 1455285361. The next prime is 1455285389. The reversal of 1455285381 is 1835825541.

It is not a de Polignac number, because 1455285381 - 26 = 1455285317 is a prime.

It is a super-2 number, since 2×14552853812 = 4235711080304630322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455285389) 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 15 ways as a sum of consecutive naturals, for example, 154045 + ... + 163218.

It is an arithmetic number, because the mean of its divisors is an integer number (133250880).

Almost surely, 21455285381 is an apocalyptic number.

1455285381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1455285381 is a deficient number, since it is larger than the sum of its proper divisors (676728699).

1455285381 is a wasteful number, since it uses less digits than its factorization.

1455285381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317416.

The product of its digits is 192000, while the sum is 42.

The square root of 1455285381 is about 38148.2028541319. The cubic root of 1455285381 is about 1133.2247616774.

The spelling of 1455285381 in words is "one billion, four hundred fifty-five million, two hundred eighty-five thousand, three hundred eighty-one".

Divisors: 1 3 11 33 139 417 1529 4587 317263 951789 3489893 10469679 44099557 132298671 485095127 1455285381