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1201210002 = 2321313171607
BaseRepresentation
bin100011110011001…
…0000001010010010
310002201021210100100
41013212100022102
54430002210002
6315110033230
741524054656
oct10746201222
93081253310
101201210002
11567062943
12296348816
13161b29165
14b5766a66
15706c911c
hex47990292

1201210002 has 48 divisors (see below), whose sum is σ = 2632398912. Its totient is φ = 395846880.

The previous prime is 1201209959. The next prime is 1201210007. The reversal of 1201210002 is 2000121021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1201210007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 746683 + ... + 748289.

It is an arithmetic number, because the mean of its divisors is an integer number (54841644).

Almost surely, 21201210002 is an apocalyptic number.

1201210002 is an abundant number, since it is smaller than the sum of its proper divisors (1431188910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201210002 is a wasteful number, since it uses less digits than its factorization.

1201210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1201210002 is about 34658.4766254952. The cubic root of 1201210002 is about 1063.0156211429.

Adding to 1201210002 its reverse (2000121021), we get a palindrome (3201331023).

The spelling of 1201210002 in words is "one billion, two hundred one million, two hundred ten thousand, two".

Divisors: 1 2 3 6 9 18 131 262 317 393 634 786 951 1179 1607 1902 2358 2853 3214 4821 5706 9642 14463 28926 41527 83054 124581 210517 249162 373743 421034 509419 631551 747486 1018838 1263102 1528257 1894653 3056514 3789306 4584771 9169542 66733889 133467778 200201667 400403334 600605001 1201210002