Search a number
-
+
31417027 = 227138401
BaseRepresentation
bin111011111011…
…0001011000011
32012010011001121
41313312023003
531020321102
63041213111
7531016555
oct167661303
965104047
1031417027
1116809094
12a631197
13667cc75
14425b4d5
152b58b37
hex1df62c3

31417027 has 4 divisors (see below), whose sum is σ = 31555656. Its totient is φ = 31278400.

The previous prime is 31416997. The next prime is 31417031. The reversal of 31417027 is 72071413.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72071413 = 437316481.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31417027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31416992 and 31417010.

It is not an unprimeable number, because it can be changed into a prime (31417327) 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, 68974 + ... + 69427.

It is an arithmetic number, because the mean of its divisors is an integer number (7888914).

Almost surely, 231417027 is an apocalyptic number.

31417027 is a deficient number, since it is larger than the sum of its proper divisors (138629).

31417027 is a wasteful number, since it uses less digits than its factorization.

31417027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138628.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 31417027 is about 5605.0893837654. The cubic root of 31417027 is about 315.5404411848.

The spelling of 31417027 in words is "thirty-one million, four hundred seventeen thousand, twenty-seven".

Divisors: 1 227 138401 31417027