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2199371207 = 11199942837
BaseRepresentation
bin1000001100010111…
…1011110111000111
312200021111122002212
42003011323313013
514001014334312
61002124054035
7105334226645
oct20305736707
95607448085
102199371207
11a29540160
1251469431b
132908713a7
1416c156195
15cd145822
hex8317bdc7

2199371207 has 4 divisors (see below), whose sum is σ = 2399314056. Its totient is φ = 1999428360.

The previous prime is 2199371137. The next prime is 2199371219. The reversal of 2199371207 is 7021739912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2199371207 - 28 = 2199370951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199371227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99971408 + ... + 99971429.

It is an arithmetic number, because the mean of its divisors is an integer number (599828514).

Almost surely, 22199371207 is an apocalyptic number.

2199371207 is a deficient number, since it is larger than the sum of its proper divisors (199942849).

2199371207 is a wasteful number, since it uses less digits than its factorization.

2199371207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199942848.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 2199371207 is about 46897.4541633125. The cubic root of 2199371207 is about 1300.4675255297.

The spelling of 2199371207 in words is "two billion, one hundred ninety-nine million, three hundred seventy-one thousand, two hundred seven".

Divisors: 1 11 199942837 2199371207