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1220002010 = 25313409953
BaseRepresentation
bin100100010110111…
…1100000011011010
310011000122112010122
41020231330003122
54444310031020
6321020513242
742142563113
oct11055740332
93130575118
101220002010
11576728627
122a06ab822
131659a87a6
14b805920a
157218c125
hex48b7c0da

1220002010 has 32 divisors (see below), whose sum is σ = 2210723280. Its totient is φ = 484743168.

The previous prime is 1220001973. The next prime is 1220002019. The reversal of 1220002010 is 102000221.

It can be written as a sum of positive squares in 8 ways, for example, as 348158281 + 871843729 = 18659^2 + 29527^2 .

It is not an unprimeable number, because it can be changed into a prime (1220002019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1279694 + ... + 1280646.

Almost surely, 21220002010 is an apocalyptic number.

1220002010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220002010 is a deficient number, since it is larger than the sum of its proper divisors (990721270).

1220002010 is a wasteful number, since it uses less digits than its factorization.

1220002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1220002010 is about 34928.5271662004. The cubic root of 1220002010 is about 1068.5303169641.

Adding to 1220002010 its reverse (102000221), we get a palindrome (1322002231).

The spelling of 1220002010 in words is "one billion, two hundred twenty million, two thousand, ten".

Divisors: 1 2 5 10 313 409 626 818 953 1565 1906 2045 3130 4090 4765 9530 128017 256034 298289 389777 596578 640085 779554 1280170 1491445 1948885 2982890 3897770 122000201 244000402 610001005 1220002010