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2122480 = 24543617
BaseRepresentation
bin1000000110001011110000
310222211111101
420012023300
51020404410
6113254144
724016663
oct10061360
93884441
102122480
11121a718
12864354
13594109
143d36da
152bdd3a
hex2062f0

2122480 has 40 divisors (see below), whose sum is σ = 5057712. Its totient is φ = 827904.

The previous prime is 2122469. The next prime is 2122489. The reversal of 2122480 is 842212.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122489) 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, 3132 + ... + 3748.

22122480 is an apocalyptic number.

2122480 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 2122480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2528856).

2122480 is an abundant number, since it is smaller than the sum of its proper divisors (2935232).

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

2122480 is a wasteful number, since it uses less digits than its factorization.

2122480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2122480 is about 1456.8733644349. The cubic root of 2122480 is about 128.5132388062.

Adding to 2122480 its reverse (842212), we get a palindrome (2964692).

The spelling of 2122480 in words is "two million, one hundred twenty-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 43 80 86 172 215 344 430 617 688 860 1234 1720 2468 3085 3440 4936 6170 9872 12340 24680 26531 49360 53062 106124 132655 212248 265310 424496 530620 1061240 2122480