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2940189 = 37140009
BaseRepresentation
bin1011001101110100011101
312112101011220
423031310131
51223041224
6143003553
733663660
oct13156435
95471156
102940189
11172900a
12b995b9
137bc375
145676d7
153d1279
hex2cdd1d

2940189 has 8 divisors (see below), whose sum is σ = 4480320. Its totient is φ = 1680096.

The previous prime is 2940187. The next prime is 2940229. The reversal of 2940189 is 9810492.

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

It is not a de Polignac number, because 2940189 - 21 = 2940187 is a prime.

It is a super-2 number, since 2×29401892 = 17289422711442, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2940187) 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 7 ways as a sum of consecutive naturals, for example, 69984 + ... + 70025.

It is an arithmetic number, because the mean of its divisors is an integer number (560040).

22940189 is an apocalyptic number.

It is an amenable number.

2940189 is a deficient number, since it is larger than the sum of its proper divisors (1540131).

2940189 is a wasteful number, since it uses less digits than its factorization.

2940189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140019.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 2940189 is about 1714.6979325817. The cubic root of 2940189 is about 143.2600448597.

The spelling of 2940189 in words is "two million, nine hundred forty thousand, one hundred eighty-nine".

Divisors: 1 3 7 21 140009 420027 980063 2940189