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2072648 = 235092
BaseRepresentation
bin111111010000001001000
310220022010202
413322001020
51012311043
6112231332
723421464
oct7720110
93808122
102072648
111196236
1283b548
13577526
143bd4a4
152ae1b8
hex1fa048

2072648 has 12 divisors (see below), whose sum is σ = 3893865. Its totient is φ = 1034288.

The previous prime is 2072647. The next prime is 2072663. The reversal of 2072648 is 8462702.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1844164 + 228484 = 1358^2 + 478^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=1018.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2072648.

It is not an unprimeable number, because it can be changed into a prime (2072647) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3818 + ... + 4326.

22072648 is an apocalyptic number.

It is an amenable number.

2072648 is a deficient number, since it is larger than the sum of its proper divisors (1821217).

2072648 is an frugal number, since it uses more digits than its factorization.

2072648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2072648 is about 1439.6694064958. The cubic root of 2072648 is about 127.4995104428.

The spelling of 2072648 in words is "two million, seventy-two thousand, six hundred forty-eight".

Divisors: 1 2 4 8 509 1018 2036 4072 259081 518162 1036324 2072648