Search a number
-
+
1807421424790 = 251921863435107
BaseRepresentation
bin11010010011010010101…
…101100100010010010110
320101210021022021121101111
4122103102231210102112
5214103044341043130
63502152401445234
7244403405424022
oct32232255442226
96353238247344
101807421424790
11637583302a03
1225235994081a
13101592951517
14636a02a9382
153203636902a
hex1a4d2b64496

1807421424790 has 32 divisors (see below), whose sum is σ = 3424752472320. Its totient is φ = 684884690784.

The previous prime is 1807421424779. The next prime is 1807421424841. The reversal of 1807421424790 is 974241247081.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3936417 + ... + 4371523.

It is an arithmetic number, because the mean of its divisors is an integer number (107023514760).

Almost surely, 21807421424790 is an apocalyptic number.

1807421424790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1807421424790 is a deficient number, since it is larger than the sum of its proper divisors (1617331047530).

1807421424790 is a wasteful number, since it uses less digits than its factorization.

1807421424790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456996.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 1807421424790 in words is "one trillion, eight hundred seven billion, four hundred twenty-one million, four hundred twenty-four thousand, seven hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 21863 43726 109315 218630 415397 435107 830794 870214 2076985 2175535 4153970 4351070 8267033 16534066 41335165 82670330 9512744341 19025488682 47563721705 95127443410 180742142479 361484284958 903710712395 1807421424790