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2020068 = 223256113
BaseRepresentation
bin111101101001011100100
310210122000100
413231023210
51004120233
6111144100
723112261
oct7551344
93718010
102020068
11115a786
12815030
1355960b
143a8268
1529d813
hex1ed2e4

2020068 has 18 divisors (see below), whose sum is σ = 5106374. Its totient is φ = 673344.

The previous prime is 2020043. The next prime is 2020079. The reversal of 2020068 is 8600202.

It can be written as a sum of positive squares in only one way, i.e., 1016064 + 1004004 = 1008^2 + 1002^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 2020068.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28021 + ... + 28092.

22020068 is an apocalyptic number.

It is an amenable number.

2020068 is an abundant number, since it is smaller than the sum of its proper divisors (3086306).

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

2020068 is a wasteful number, since it uses less digits than its factorization.

2020068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56123 (or 56118 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2020068 is about 1421.2909624704. The cubic root of 2020068 is about 126.4121049402.

The spelling of 2020068 in words is "two million, twenty thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 56113 112226 168339 224452 336678 505017 673356 1010034 2020068