Search a number
-
+
31314711 = 331333349
BaseRepresentation
bin111011101110…
…1001100010111
32011220221201010
41313131030113
531004032321
63035103303
7530112351
oct167351427
964827633
1031314711
111674922a
12a5a1b33
13664551c
1442320d1
152b38676
hex1ddd317

31314711 has 8 divisors (see below), whose sum is σ = 41887600. Its totient is φ = 20809152.

The previous prime is 31314709. The next prime is 31314713. The reversal of 31314711 is 11741313.

It is an interprime number because it is at equal distance from previous prime (31314709) and next prime (31314713).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31314711 - 21 = 31314709 is a prime.

It is a super-2 number, since 2×313147112 = 1961222250027042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31314713) 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, 15736 + ... + 17613.

It is an arithmetic number, because the mean of its divisors is an integer number (5235950).

Almost surely, 231314711 is an apocalyptic number.

31314711 is a deficient number, since it is larger than the sum of its proper divisors (10572889).

31314711 is a wasteful number, since it uses less digits than its factorization.

31314711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33665.

The product of its digits is 252, while the sum is 21.

The square root of 31314711 is about 5595.9548783027. The cubic root of 31314711 is about 315.1975279112.

The spelling of 31314711 in words is "thirty-one million, three hundred fourteen thousand, seven hundred eleven".

Divisors: 1 3 313 939 33349 100047 10438237 31314711