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2045977 = 19257419
BaseRepresentation
bin111110011100000011001
310211221112221
413303200121
51010432402
6111504041
723250643
oct7634031
93757487
102045977
11117819a
12828021
1356834b
143b3893
152a6337
hex1f3819

2045977 has 8 divisors (see below), whose sum is σ = 2167200. Its totient is φ = 1926144.

The previous prime is 2045963. The next prime is 2045987. The reversal of 2045977 is 7795402.

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

It is a de Polignac number, because none of the positive numbers 2k-2045977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4674 + ... + 5092.

It is an arithmetic number, because the mean of its divisors is an integer number (270900).

22045977 is an apocalyptic number.

It is an amenable number.

2045977 is a deficient number, since it is larger than the sum of its proper divisors (121223).

2045977 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (2045976) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (695).

2045977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 2045977 is about 1430.3765238566. The cubic root of 2045977 is about 126.9502564194.

The spelling of 2045977 in words is "two million, forty-five thousand, nine hundred seventy-seven".

Divisors: 1 19 257 419 4883 7961 107683 2045977