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2072680 = 23551817
BaseRepresentation
bin111111010000001101000
310220022011221
413322001220
51012311210
6112231424
723421541
oct7720150
93808157
102072680
111196265
1283b574
1357754c
143bd4c8
152ae1da
hex1fa068

2072680 has 16 divisors (see below), whose sum is σ = 4663620. Its totient is φ = 829056.

The previous prime is 2072663. The next prime is 2072683. The reversal of 2072680 is 862702.

It can be written as a sum of positive squares in 2 ways, for example, as 2033476 + 39204 = 1426^2 + 198^2 .

It is not an unprimeable number, because it can be changed into a prime (2072683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25869 + ... + 25948.

22072680 is an apocalyptic number.

2072680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2072680 is an abundant number, since it is smaller than the sum of its proper divisors (2590940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2072680 is a wasteful number, since it uses less digits than its factorization.

2072680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51828 (or 51824 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2072680 is about 1439.6805201155. The cubic root of 2072680 is about 127.5001666024.

The spelling of 2072680 in words is "two million, seventy-two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 51817 103634 207268 259085 414536 518170 1036340 2072680