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19220248 = 2319314079
BaseRepresentation
bin100100101010…
…0011100011000
31100011111020001
41021110130120
514410021443
61523542344
7322240465
oct111243430
940144201
1019220248
11a938503
12652a9b4
133c9c538
1427a466c
151a49d4d
hex1254718

19220248 has 32 divisors (see below), whose sum is σ = 39168000. Its totient is φ = 8808480.

The previous prime is 19220239. The next prime is 19220273. The reversal of 19220248 is 84202291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2673 + ... + 6751.

It is an arithmetic number, because the mean of its divisors is an integer number (1224000).

Almost surely, 219220248 is an apocalyptic number.

It is an amenable number.

19220248 is an abundant number, since it is smaller than the sum of its proper divisors (19947752).

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

19220248 is a wasteful number, since it uses less digits than its factorization.

19220248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4135 (or 4131 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 19220248 is about 4384.0903275366. The cubic root of 19220248 is about 267.8672766740.

The spelling of 19220248 in words is "nineteen million, two hundred twenty thousand, two hundred forty-eight".

Divisors: 1 2 4 8 19 31 38 62 76 124 152 248 589 1178 2356 4079 4712 8158 16316 32632 77501 126449 155002 252898 310004 505796 620008 1011592 2402531 4805062 9610124 19220248