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2195109007 = 721319672707
BaseRepresentation
bin1000001011010110…
…1011010010001111
312122222111002110121
42002311223102033
513443421442012
61001452445411
7105253055500
oct20265532217
95588432417
102195109007
11a27099983
12513179867
1328ca0b390
1416b766ba7
15ccaa2a07
hex82d6b48f

2195109007 has 48 divisors (see below), whose sum is σ = 2938938240. Its totient is φ = 1620222912.

The previous prime is 2195108999. The next prime is 2195109011. The reversal of 2195109007 is 7009015912.

2195109007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2195109007 - 23 = 2195108999 is a prime.

It is a super-2 number, since 2×21951090072 = 9637007105225052098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195109047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 809548 + ... + 812254.

It is an arithmetic number, because the mean of its divisors is an integer number (61227880).

Almost surely, 22195109007 is an apocalyptic number.

2195109007 is a deficient number, since it is larger than the sum of its proper divisors (743829233).

2195109007 is a wasteful number, since it uses less digits than its factorization.

2195109007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820 (or 2813 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 2195109007 is about 46851.9904273020. The cubic root of 2195109007 is about 1299.6269160167.

The spelling of 2195109007 in words is "two billion, one hundred ninety-five million, one hundred nine thousand, seven".

Divisors: 1 7 13 19 49 67 91 133 247 469 637 871 931 1273 1729 2707 3283 6097 8911 12103 16549 18949 35191 42679 51433 62377 115843 132643 181369 246337 360031 668629 810901 1269583 1724359 2357797 2520217 3446011 4680403 8887081 16504579 24122077 32762821 44798143 115532053 168854539 313587001 2195109007