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19226808 = 233429671
BaseRepresentation
bin100100101011…
…0000010111000
31100011211020000
41021112002320
514410224213
61524033000
7322265556
oct111260270
940154200
1019226808
11a942427
126532760
133ca2513
1427a6bd6
151a4bc73
hex12560b8

19226808 has 40 divisors (see below), whose sum is σ = 53854680. Its totient is φ = 6408720.

The previous prime is 19226761. The next prime is 19226819. The reversal of 19226808 is 80862291.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14188 + ... + 15483.

It is an arithmetic number, because the mean of its divisors is an integer number (1346367).

Almost surely, 219226808 is an apocalyptic number.

19226808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19226808 is an abundant number, since it is smaller than the sum of its proper divisors (34627872).

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

19226808 is a wasteful number, since it uses less digits than its factorization.

19226808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29689 (or 29676 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 19226808 is about 4384.8384234770. The cubic root of 19226808 is about 267.8977481756.

It can be divided in two parts, 192 and 26808, that added together give a cube (27000 = 303).

The spelling of 19226808 in words is "nineteen million, two hundred twenty-six thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 29671 59342 89013 118684 178026 237368 267039 356052 534078 712104 801117 1068156 1602234 2136312 2403351 3204468 4806702 6408936 9613404 19226808