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2119220 = 2251723271
BaseRepresentation
bin1000000101011000110100
310222200000122
420011120310
51020303340
6113231112
724004325
oct10053064
93880018
102119220
111218224
12862498
1359279c
143d244c
152bcdb5
hex205634

2119220 has 48 divisors (see below), whose sum is σ = 4935168. Its totient is φ = 760320.

The previous prime is 2119211. The next prime is 2119231. The reversal of 2119220 is 229112.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7685 + ... + 7955.

It is an arithmetic number, because the mean of its divisors is an integer number (102816).

22119220 is an apocalyptic number.

2119220 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 2119220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2467584).

2119220 is an abundant number, since it is smaller than the sum of its proper divisors (2815948).

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

2119220 is a wasteful number, since it uses less digits than its factorization.

2119220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2119220 is about 1455.7541001144. The cubic root of 2119220 is about 128.4474089221.

It can be divided in two parts, 21192 and 20, that added together give a palindrome (21212).

The spelling of 2119220 in words is "two million, one hundred nineteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 23 34 46 68 85 92 115 170 230 271 340 391 460 542 782 1084 1355 1564 1955 2710 3910 4607 5420 6233 7820 9214 12466 18428 23035 24932 31165 46070 62330 92140 105961 124660 211922 423844 529805 1059610 2119220