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10131220210 = 251761796589
BaseRepresentation
bin10010110111101111…
…00010011011110010
3222011001200022102011
421123313202123302
5131222043021320
64353151113134
7506026644106
oct113367423362
928131608364
1010131220210
11432989a771
121b68b127aa
13c55c42477
146c175d906
153e467d05a
hex25bde26f2

10131220210 has 32 divisors (see below), whose sum is σ = 19340408880. Its totient is φ = 3807885312.

The previous prime is 10131220139. The next prime is 10131220237. The reversal of 10131220210 is 1202213101.

It can be written as a sum of positive squares in 8 ways, for example, as 717757681 + 9413462529 = 26791^2 + 97023^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56596 + ... + 153184.

Almost surely, 210131220210 is an apocalyptic number.

10131220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10131220210 is a deficient number, since it is larger than the sum of its proper divisors (9209188670).

10131220210 is a wasteful number, since it uses less digits than its factorization.

10131220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97230.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10131220210 its reverse (1202213101), we get a palindrome (11333433311).

The spelling of 10131220210 in words is "ten billion, one hundred thirty-one million, two hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 10 17 34 85 170 617 1234 3085 6170 10489 20978 52445 96589 104890 193178 482945 965890 1642013 3284026 8210065 16420130 59595413 119190826 297977065 595954130 1013122021 2026244042 5065610105 10131220210