Search a number
-
+
6921063052 = 2217101780339
BaseRepresentation
bin1100111001000011…
…10000101010001100
3122212100012102122121
412130201300222030
5103133243004202
63102434222324
7333340031251
oct63441605214
918770172577
106921063052
112a3183a122
121411a249a4
13863b586a7
1449928d428
152a7925537
hex19c870a8c

6921063052 has 12 divisors (see below), whose sum is σ = 12824322840. Its totient is φ = 3256970816.

The previous prime is 6921063049. The next prime is 6921063053. The reversal of 6921063052 is 2503601296.

It is a super-2 number, since 2×69210630522 = 95802227539519109408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 6921062999 and 6921063017.

It is not an unprimeable number, because it can be changed into a prime (6921063053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50890102 + ... + 50890237.

It is an arithmetic number, because the mean of its divisors is an integer number (1068693570).

Almost surely, 26921063052 is an apocalyptic number.

It is an amenable number.

6921063052 is a deficient number, since it is larger than the sum of its proper divisors (5903259788).

6921063052 is a wasteful number, since it uses less digits than its factorization.

6921063052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101780360 (or 101780358 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 6921063052 is about 83192.9266945213. The cubic root of 6921063052 is about 1905.7134622972.

The spelling of 6921063052 in words is "six billion, nine hundred twenty-one million, sixty-three thousand, fifty-two".

Divisors: 1 2 4 17 34 68 101780339 203560678 407121356 1730265763 3460531526 6921063052