Search a number
-
+
10720528931 = 73352945677
BaseRepresentation
bin10011111101111111…
…00100101000100011
31000200010120022000002
421332333210220203
5133423423411211
64531442050215
7526443664250
oct117677445043
930603508002
1010720528931
114601506072
1220b234996b
13101b066958
14739b22427
1542b28803b
hex27efe4a23

10720528931 has 8 divisors (see below), whose sum is σ = 12252666720. Its totient is φ = 9188549568.

The previous prime is 10720528921. The next prime is 10720528937. The reversal of 10720528931 is 13982502701.

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 10720528931 - 26 = 10720528867 is a prime.

It is a super-2 number, since 2×107205289312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10720528937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211865 + ... + 257541.

It is an arithmetic number, because the mean of its divisors is an integer number (1531583340).

Almost surely, 210720528931 is an apocalyptic number.

10720528931 is a deficient number, since it is larger than the sum of its proper divisors (1532137789).

10720528931 is an equidigital number, since it uses as much as digits as its factorization.

10720528931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79213.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 10720528931 in words is "ten billion, seven hundred twenty million, five hundred twenty-eight thousand, nine hundred thirty-one".

Divisors: 1 7 33529 45677 234703 319739 1531504133 10720528931