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3213000031 = 28329393863
BaseRepresentation
bin1011111110000010…
…0111110101011111
322021220211022110011
42333200213311133
523040012000111
61250453424051
7142423023013
oct27740476537
98256738404
103213000031
1113a972252a
1275803b027
133c2870a67
14226a10543
1513c11a021
hexbf827d5f

3213000031 has 8 divisors (see below), whose sum is σ = 3226285440. Its totient is φ = 3199728792.

The previous prime is 3213000013. The next prime is 3213000067. The reversal of 3213000031 is 1300003123.

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 3213000031 - 27 = 3212999903 is a prime.

It is a super-2 number, since 2×32130000312 = 20646738398412001922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3212999975 and 3213000020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213006031) 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, 829806 + ... + 833668.

It is an arithmetic number, because the mean of its divisors is an integer number (403285680).

Almost surely, 23213000031 is an apocalyptic number.

3213000031 is a deficient number, since it is larger than the sum of its proper divisors (13285409).

3213000031 is a wasteful number, since it uses less digits than its factorization.

3213000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7085.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 3213000031 is about 56683.3311565225. The cubic root of 3213000031 is about 1475.6054250833.

Adding to 3213000031 its reverse (1300003123), we get a palindrome (4513003154).

The spelling of 3213000031 in words is "three billion, two hundred thirteen million, thirty-one", and thus it is an aban number.

Divisors: 1 283 2939 3863 831737 1093229 11353357 3213000031