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31314230 = 257734051
BaseRepresentation
bin111011101110…
…1000100110110
32011220221001022
41313131010312
531004023410
63035101142
7530111063
oct167350466
964827038
1031314230
1116748932
12a5a17b2
13664523c
144231c6a
152b38455
hex1ddd136

31314230 has 16 divisors (see below), whose sum is σ = 56452464. Its totient is φ = 12506400.

The previous prime is 31314197. The next prime is 31314251. The reversal of 31314230 is 3241313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31314199 and 31314208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5705 + ... + 9755.

It is an arithmetic number, because the mean of its divisors is an integer number (3528279).

Almost surely, 231314230 is an apocalyptic number.

31314230 is a deficient number, since it is larger than the sum of its proper divisors (25138234).

31314230 is a wasteful number, since it uses less digits than its factorization.

31314230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4831.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 31314230 is about 5595.9119006646. The cubic root of 31314230 is about 315.1959140713.

Adding to 31314230 its reverse (3241313), we get a palindrome (34555543).

The spelling of 31314230 in words is "thirty-one million, three hundred fourteen thousand, two hundred thirty".

Divisors: 1 2 5 10 773 1546 3865 4051 7730 8102 20255 40510 3131423 6262846 15657115 31314230