Search a number
-
+
31067090 = 25191131447
BaseRepresentation
bin111011010000…
…0101111010010
32011110101000222
41312200233102
530423121330
63025513042
7525031415
oct166405722
964411028
1031067090
111659a18a
12a4a2782
1365898c2
1441a9b7c
152ada0e5
hex1da0bd2

31067090 has 32 divisors (see below), whose sum is σ = 59425920. Its totient is φ = 11660544.

The previous prime is 31067081. The next prime is 31067111. The reversal of 31067090 is 9076013.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20747 + ... + 22193.

It is an arithmetic number, because the mean of its divisors is an integer number (1857060).

Almost surely, 231067090 is an apocalyptic number.

31067090 is a deficient number, since it is larger than the sum of its proper divisors (28358830).

31067090 is a wasteful number, since it uses less digits than its factorization.

31067090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 31067090 is about 5573.7859664684. The cubic root of 31067090 is about 314.3645204780.

The spelling of 31067090 in words is "thirty-one million, sixty-seven thousand, ninety".

Divisors: 1 2 5 10 19 38 95 113 190 226 565 1130 1447 2147 2894 4294 7235 10735 14470 21470 27493 54986 137465 163511 274930 327022 817555 1635110 3106709 6213418 15533545 31067090