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53849420 = 22519141709
BaseRepresentation
bin1100110101101…
…0110101001100
310202022211111222
43031122311030
5102241140140
65202102512
71222466252
oct315326514
9122284458
1053849420
112843a959
121604aa38
13b205581
14721a5d2
154ada5b5
hex335ad4c

53849420 has 24 divisors (see below), whose sum is σ = 119036400. Its totient is φ = 20405952.

The previous prime is 53849413. The next prime is 53849429. The reversal of 53849420 is 2494835.

It is not an unprimeable number, because it can be changed into a prime (53849429) 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, 70475 + ... + 71234.

It is an arithmetic number, because the mean of its divisors is an integer number (4959850).

Almost surely, 253849420 is an apocalyptic number.

It is an amenable number.

53849420 is an abundant number, since it is smaller than the sum of its proper divisors (65186980).

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

53849420 is a wasteful number, since it uses less digits than its factorization.

53849420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141737 (or 141735 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 53849420 is about 7338.2164045495. The cubic root of 53849420 is about 377.6246565790.

The spelling of 53849420 in words is "fifty-three million, eight hundred forty-nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 141709 283418 566836 708545 1417090 2692471 2834180 5384942 10769884 13462355 26924710 53849420