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2049481 = 71132591
BaseRepresentation
bin111110100010111001001
310212010100201
413310113021
51011040411
6111532201
723264110
oct7642711
93763321
102049481
11117a895
1282a061
13569b15
143b4c77
152a73c1
hex1f45c9

2049481 has 8 divisors (see below), whose sum is σ = 2363904. Its totient is φ = 1740480.

The previous prime is 2049451. The next prime is 2049491. The reversal of 2049481 is 1849402.

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

It is not a de Polignac number, because 2049481 - 25 = 2049449 is a prime.

It is a super-2 number, since 2×20494812 = 8400744738722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049431) 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, 505 + ... + 2086.

It is an arithmetic number, because the mean of its divisors is an integer number (295488).

22049481 is an apocalyptic number.

It is an amenable number.

2049481 is a deficient number, since it is larger than the sum of its proper divisors (314423).

2049481 is a wasteful number, since it uses less digits than its factorization.

2049481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2049481 is about 1431.6008521931. The cubic root of 2049481 is about 127.0226879920.

The spelling of 2049481 in words is "two million, forty-nine thousand, four hundred eighty-one".

Divisors: 1 7 113 791 2591 18137 292783 2049481