Search a number
-
+
11072506457 = 49531223547
BaseRepresentation
bin10100100111111100…
…10000101001011001
31001120122212121101202
422103332100221121
5140134030201312
65030414123545
7541246515635
oct122376205131
931518777352
1011072506457
114772160a91
1221901b05b5
131075c62c8c
14770785dc5
1544c1129c2
hex293f90a59

11072506457 has 4 divisors (see below), whose sum is σ = 11072779536. Its totient is φ = 11072233380.

The previous prime is 11072506399. The next prime is 11072506463. The reversal of 11072506457 is 75460527011.

11072506457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11072506457 - 28 = 11072506201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11072506457.

It is not an unprimeable number, because it can be changed into a prime (11072506957) 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 3 ways as a sum of consecutive naturals, for example, 62243 + ... + 161304.

It is an arithmetic number, because the mean of its divisors is an integer number (2768194884).

Almost surely, 211072506457 is an apocalyptic number.

It is an amenable number.

11072506457 is a deficient number, since it is larger than the sum of its proper divisors (273079).

11072506457 is an equidigital number, since it uses as much as digits as its factorization.

11072506457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273078.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 11072506457 in words is "eleven billion, seventy-two million, five hundred six thousand, four hundred fifty-seven".

Divisors: 1 49531 223547 11072506457