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1206214642 = 21143752733
BaseRepresentation
bin100011111100101…
…0101111111110010
310010001201001102101
41013321111333302
54432242332032
6315405211014
741614440523
oct10771257762
93101631371
101206214642
11569970a06
12297b60a6a
13162b8c099
14b62aa84a
1570d66de7
hex47e55ff2

1206214642 has 8 divisors (see below), whose sum is σ = 1809514476. Its totient is φ = 603043152.

The previous prime is 1206214637. The next prime is 1206214657. The reversal of 1206214642 is 2464126021.

It can be written as a sum of positive squares in 2 ways, for example, as 1131582321 + 74632321 = 33639^2 + 8639^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1206214642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3493 + ... + 49240.

Almost surely, 21206214642 is an apocalyptic number.

1206214642 is a deficient number, since it is larger than the sum of its proper divisors (603299834).

1206214642 is a wasteful number, since it uses less digits than its factorization.

1206214642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64172.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1206214642 is about 34730.6009449880. The cubic root of 1206214642 is about 1064.4898677312.

The spelling of 1206214642 in words is "one billion, two hundred six million, two hundred fourteen thousand, six hundred forty-two".

Divisors: 1 2 11437 22874 52733 105466 603107321 1206214642