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2131058 = 21065529
BaseRepresentation
bin1000001000010001110010
311000021021002
420020101302
51021143213
6113402002
724053666
oct10102162
94007232
102131058
111226106
12869302
13597ca7
143d68a6
152c1658
hex208472

2131058 has 4 divisors (see below), whose sum is σ = 3196590. Its totient is φ = 1065528.

The previous prime is 2131049. The next prime is 2131081. The reversal of 2131058 is 8501312.

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

It can be written as a sum of positive squares in only one way, i.e., 2093809 + 37249 = 1447^2 + 193^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532763 + ... + 532766.

22131058 is an apocalyptic number.

2131058 is a deficient number, since it is larger than the sum of its proper divisors (1065532).

2131058 is a wasteful number, since it uses less digits than its factorization.

2131058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065531.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2131058 is about 1459.8143717610. The cubic root of 2131058 is about 128.6861347879.

The spelling of 2131058 in words is "two million, one hundred thirty-one thousand, fifty-eight".

Divisors: 1 2 1065529 2131058