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2131078 = 21956081
BaseRepresentation
bin1000001000010010000110
311000021021211
420020102012
51021143303
6113402034
724054025
oct10102206
94007254
102131078
111226124
1286931a
13597cc1
143d68bc
152c166d
hex208486

2131078 has 8 divisors (see below), whose sum is σ = 3364920. Its totient is φ = 1009440.

The previous prime is 2131049. The next prime is 2131081. The reversal of 2131078 is 8701312.

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

It is a congruent number.

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, 28003 + ... + 28078.

It is an arithmetic number, because the mean of its divisors is an integer number (420615).

22131078 is an apocalyptic number.

2131078 is a deficient number, since it is larger than the sum of its proper divisors (1233842).

2131078 is a wasteful number, since it uses less digits than its factorization.

2131078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56102.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 2131078 is about 1459.8212219310. The cubic root of 2131078 is about 128.6865373602.

The spelling of 2131078 in words is "two million, one hundred thirty-one thousand, seventy-eight".

Divisors: 1 2 19 38 56081 112162 1065539 2131078