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53870800 = 2452134677
BaseRepresentation
bin1100110110000…
…0000011010000
310202100220211211
43031200003100
5102242331200
65202345504
71222615504
oct315400320
9122326754
1053870800
1128454a25
121605b294
13b212219
147224304
154ae1aba
hex33600d0

53870800 has 30 divisors (see below), whose sum is σ = 129425558. Its totient is φ = 21548160.

The previous prime is 53870771. The next prime is 53870809. The reversal of 53870800 is 807835.

It can be written as a sum of positive squares in 3 ways, for example, as 10732176 + 43138624 = 3276^2 + 6568^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53870809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66939 + ... + 67738.

Almost surely, 253870800 is an apocalyptic number.

53870800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53870800 is an abundant number, since it is smaller than the sum of its proper divisors (75554758).

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

53870800 is a wasteful number, since it uses less digits than its factorization.

53870800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134695 (or 134684 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 53870800 is about 7339.6730172399. The cubic root of 53870800 is about 377.6746264574.

The spelling of 53870800 in words is "fifty-three million, eight hundred seventy thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 134677 269354 538708 673385 1077416 1346770 2154832 2693540 3366925 5387080 6733850 10774160 13467700 26935400 53870800