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2070740 = 225722113
BaseRepresentation
bin111111001100011010100
310220012112002
413321203110
51012230430
6112214432
723413100
oct7714324
93805462
102070740
111194861
1283a418
135766b9
143bc900
152ad845
hex1f98d4

2070740 has 36 divisors (see below), whose sum is σ = 5060916. Its totient is φ = 709632.

The previous prime is 2070737. The next prime is 2070749. The reversal of 2070740 is 470702.

It can be written as a sum of positive squares in 2 ways, for example, as 226576 + 1844164 = 476^2 + 1358^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2070749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77 + ... + 2036.

It is an arithmetic number, because the mean of its divisors is an integer number (140581).

22070740 is an apocalyptic number.

2070740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2070740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2530458).

2070740 is an abundant number, since it is smaller than the sum of its proper divisors (2990176).

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

2070740 is a wasteful number, since it uses less digits than its factorization.

2070740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136 (or 2127 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 2070740 is about 1439.0066017917. The cubic root of 2070740 is about 127.4603747169.

The spelling of 2070740 in words is "two million, seventy thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 2113 4226 8452 10565 14791 21130 29582 42260 59164 73955 103537 147910 207074 295820 414148 517685 1035370 2070740