Search a number
-
+
7825005050 = 252732143837
BaseRepresentation
bin1110100100110100…
…00001100111111010
3202012100010102221212
413102122001213322
5112011200130200
63332245003122
7364624305542
oct72232014772
922170112855
107825005050
113356014125
1216246b34a2
13979202405
14543354322
1530be80035
hex1d26819fa

7825005050 has 24 divisors (see below), whose sum is σ = 14753893116. Its totient is φ = 3087123840.

The previous prime is 7825005047. The next prime is 7825005059. The reversal of 7825005050 is 505005287.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3335871049 + 4489134001 = 57757^2 + 67001^2 .

It is a super-2 number, since 2×78250050502 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7825004998 and 7825005016.

It is not an unprimeable number, because it can be changed into a prime (7825005059) 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 11 ways as a sum of consecutive naturals, for example, 1068269 + ... + 1075568.

Almost surely, 27825005050 is an apocalyptic number.

7825005050 is a deficient number, since it is larger than the sum of its proper divisors (6928888066).

7825005050 is a wasteful number, since it uses less digits than its factorization.

7825005050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143922 (or 2143917 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 7825005050 is about 88459.0586090537. The cubic root of 7825005050 is about 1985.3094455046.

It can be divided in two parts, 78250050 and 50, that multiplied together give a square (3912502500 = 625502).

The spelling of 7825005050 in words is "seven billion, eight hundred twenty-five million, five thousand, fifty".

Divisors: 1 2 5 10 25 50 73 146 365 730 1825 3650 2143837 4287674 10719185 21438370 53595925 107191850 156500101 313000202 782500505 1565001010 3912502525 7825005050