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2112078 = 231997191
BaseRepresentation
bin1000000011101001001110
310222022020010
420003221032
51020041303
6113134050
723644443
oct10035116
93868203
102112078
111212921
1285a326
1358c467
143cd9ca
152bac03
hex203a4e

2112078 has 32 divisors (see below), whose sum is σ = 4515840. Its totient is φ = 656640.

The previous prime is 2112053. The next prime is 2112079. The reversal of 2112078 is 8702112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10963 + ... + 11153.

It is an arithmetic number, because the mean of its divisors is an integer number (141120).

22112078 is an apocalyptic number.

2112078 is an abundant number, since it is smaller than the sum of its proper divisors (2403762).

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

2112078 is a wasteful number, since it uses less digits than its factorization.

2112078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 2112078 is about 1453.2990057108. The cubic root of 2112078 is about 128.3029526481.

The spelling of 2112078 in words is "two million, one hundred twelve thousand, seventy-eight".

Divisors: 1 2 3 6 19 38 57 97 114 191 194 291 382 573 582 1146 1843 3629 3686 5529 7258 10887 11058 18527 21774 37054 55581 111162 352013 704026 1056039 2112078