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53998750 = 254133323
BaseRepresentation
bin1100110111111…
…1010010011110
310202121102100201
43031333102132
5102310430000
65205214114
71223660521
oct315772236
9122542321
1053998750
1128532073
121610133a
13b258530
147258bb8
154b1996a
hex337f49e

53998750 has 40 divisors (see below), whose sum is σ = 109033848. Its totient is φ = 19932000.

The previous prime is 53998739. The next prime is 53998753. The reversal of 53998750 is 5789935.

It is a self number, because there is not a number n which added to its sum of digits gives 53998750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53998753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14589 + ... + 17911.

Almost surely, 253998750 is an apocalyptic number.

53998750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53998750 is an abundant number, since it is smaller than the sum of its proper divisors (55035098).

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

53998750 is a wasteful number, since it uses less digits than its factorization.

53998750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358 (or 3343 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 53998750 is about 7348.3841761302. The cubic root of 53998750 is about 377.9733984620.

The spelling of 53998750 in words is "fifty-three million, nine hundred ninety-eight thousand, seven hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 125 130 250 325 625 650 1250 1625 3250 3323 6646 8125 16250 16615 33230 43199 83075 86398 166150 215995 415375 431990 830750 1079975 2076875 2159950 4153750 5399875 10799750 26999375 53998750