Search a number
-
+
31555454011 = 193135306113
BaseRepresentation
bin11101011000110110…
…100000010000111011
310000110011011011010221
4131120312200100323
51004111144012021
622255114520511
72164654635124
oct353066402073
9100404134127
1031555454011
111242325a714
126147a36137
132c8b7020a3
141754c6504b
15c4a479241
hex758da043b

31555454011 has 8 divisors (see below), whose sum is σ = 33322395920. Its totient is φ = 29799124992.

The previous prime is 31555453913. The next prime is 31555454017. The reversal of 31555454011 is 11045455513.

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 31555454011 - 27 = 31555453883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31555454017) 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 7 ways as a sum of consecutive naturals, for example, 2647110 + ... + 2659003.

It is an arithmetic number, because the mean of its divisors is an integer number (4165299490).

Almost surely, 231555454011 is an apocalyptic number.

31555454011 is a deficient number, since it is larger than the sum of its proper divisors (1766941909).

31555454011 is a wasteful number, since it uses less digits than its factorization.

31555454011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306445.

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 31555454011 in words is "thirty-one billion, five hundred fifty-five million, four hundred fifty-four thousand, eleven".

Divisors: 1 19 313 5947 5306113 100816147 1660813369 31555454011