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2081079 = 337211213
BaseRepresentation
bin111111100000100110111
310220201201000
413330010313
51013043304
6112334343
723455200
oct7740467
93821630
102081079
1111a1600
128443b3
1357b310
143c25a7
152b1939
hex1fc137

2081079 has 72 divisors (see below), whose sum is σ = 4245360. Its totient is φ = 997920.

The previous prime is 2081047. The next prime is 2081099. The reversal of 2081079 is 9701802.

It is not a de Polignac number, because 2081079 - 25 = 2081047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 160077 + ... + 160089.

22081079 is an apocalyptic number.

2081079 is an abundant number, since it is smaller than the sum of its proper divisors (2164281).

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

2081079 is a wasteful number, since it uses less digits than its factorization.

2081079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 2081079 is about 1442.5945376300. The cubic root of 2081079 is about 127.6721549889.

2081079 divided by its sum of digits (27) gives a palindrome (77077).

The spelling of 2081079 in words is "two million, eighty-one thousand, seventy-nine".

Divisors: 1 3 7 9 11 13 21 27 33 39 49 63 77 91 99 117 121 143 147 189 231 273 297 351 363 429 441 539 637 693 819 847 1001 1089 1287 1323 1573 1617 1911 2079 2457 2541 3003 3267 3861 4719 4851 5733 5929 7007 7623 9009 11011 14157 14553 17199 17787 21021 22869 27027 33033 42471 53361 63063 77077 99099 160083 189189 231231 297297 693693 2081079