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1312213010 = 25131221301
BaseRepresentation
bin100111000110110…
…1100100000010010
310101110011022211212
41032031230200102
510141411304020
6334113140122
744342424623
oct11615544022
93343138755
101312213010
1161378a069
1230755a642
1317bb22c04
14c63bda4a
157a303cc5
hex4e36c812

1312213010 has 8 divisors (see below), whose sum is σ = 2361983436. Its totient is φ = 524885200.

The previous prime is 1312212977. The next prime is 1312213013. The reversal of 1312213010 is 103122131.

It can be written as a sum of positive squares in 2 ways, for example, as 1291755481 + 20457529 = 35941^2 + 4523^2 .

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

It is a super-2 number, since 2×13122130102 = 3443805967226520200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312213013) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 65610641 + ... + 65610660.

Almost surely, 21312213010 is an apocalyptic number.

1312213010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312213010 is a deficient number, since it is larger than the sum of its proper divisors (1049770426).

1312213010 is a wasteful number, since it uses less digits than its factorization.

1312213010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131221308.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1312213010 is about 36224.4808106341. The cubic root of 1312213010 is about 1094.7999773645.

Adding to 1312213010 its reverse (103122131), we get a palindrome (1415335141).

The spelling of 1312213010 in words is "one billion, three hundred twelve million, two hundred thirteen thousand, ten".

Divisors: 1 2 5 10 131221301 262442602 656106505 1312213010