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1930236 = 2237112089
BaseRepresentation
bin111010111001111111100
310122001210020
413113033330
5443231421
6105212140
722256340
oct7271774
93561706
101930236
1110a9240
12791050
13527769
14383620
15281dc6
hex1d73fc

1930236 has 48 divisors (see below), whose sum is σ = 5617920. Its totient is φ = 501120.

The previous prime is 1930219. The next prime is 1930237. The reversal of 1930236 is 6320391.

It is a super-2 number, since 2×19302362 = 7451622031392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121 + ... + 1968.

It is an arithmetic number, because the mean of its divisors is an integer number (117040).

21930236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1930236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2808960).

1930236 is an abundant number, since it is smaller than the sum of its proper divisors (3687684).

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

1930236 is a wasteful number, since it uses less digits than its factorization.

1930236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 2112 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 1930236 is about 1389.3293346072. The cubic root of 1930236 is about 124.5097813318.

The spelling of 1930236 in words is "one million, nine hundred thirty thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 2089 4178 6267 8356 12534 14623 22979 25068 29246 43869 45958 58492 68937 87738 91916 137874 160853 175476 275748 321706 482559 643412 965118 1930236