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2742001 = 8930809
BaseRepresentation
bin1010011101011011110001
312011022022121
422131123301
51200221001
6134434241
732210113
oct12353361
95138277
102742001
111603119
12b02981
137500b2
145153b3
153926a1
hex29d6f1

2742001 has 4 divisors (see below), whose sum is σ = 2772900. Its totient is φ = 2711104.

The previous prime is 2741993. The next prime is 2742007. The reversal of 2742001 is 1002472.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1442401 + 1299600 = 1201^2 + 1140^2 .

It is a cyclic number.

It is not a de Polignac number, because 2742001 - 23 = 2741993 is a prime.

It is a Duffinian number.

2742001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2742007) 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 3 ways as a sum of consecutive naturals, for example, 15316 + ... + 15493.

It is an arithmetic number, because the mean of its divisors is an integer number (693225).

22742001 is an apocalyptic number.

It is an amenable number.

2742001 is a deficient number, since it is larger than the sum of its proper divisors (30899).

2742001 is an equidigital number, since it uses as much as digits as its factorization.

2742001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30898.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 2742001 is about 1655.8988495678. The cubic root of 2742001 is about 139.9659951425.

Adding to 2742001 its reverse (1002472), we get a palindrome (3744473).

The spelling of 2742001 in words is "two million, seven hundred forty-two thousand, one".

Divisors: 1 89 30809 2742001