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2047997 = 7307953
BaseRepresentation
bin111110011111111111101
310212001022202
413303333331
51011013442
6111521245
723256560
oct7637775
93761282
102047997
111179766
12829225
13569243
143b44d7
152a6c32
hex1f3ffd

2047997 has 8 divisors (see below), whose sum is σ = 2350656. Its totient is φ = 1747872.

The previous prime is 2047993. The next prime is 2048003. The reversal of 2047997 is 7997402.

It is a happy number.

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

It is not a de Polignac number, because 2047997 - 22 = 2047993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2047997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2047993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673 + ... + 2625.

It is an arithmetic number, because the mean of its divisors is an integer number (293832).

22047997 is an apocalyptic number.

It is an amenable number.

2047997 is a deficient number, since it is larger than the sum of its proper divisors (302659).

2047997 is an equidigital number, since it uses as much as digits as its factorization.

2047997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 2047997 is about 1431.0824574426. The cubic root of 2047997 is about 126.9920221496.

The spelling of 2047997 in words is "two million, forty-seven thousand, nine hundred ninety-seven".

Divisors: 1 7 307 953 2149 6671 292571 2047997