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550030005250 = 25311200010911
BaseRepresentation
bin10000000000100000101…
…01111101010000000010
31221120201112111022022221
420000100111331100002
533002430140132000
61100402535521254
754511153622065
oct10002025752002
91846645438287
10550030005250
111a22a2664980
128a723b2922a
133cb38194c8b
141c89b9248dc
15e492e5361a
hex801057d402

550030005250 has 32 divisors (see below), whose sum is σ = 1123261281792. Its totient is φ = 200010910000.

The previous prime is 550030005193. The next prime is 550030005257. The reversal of 550030005250 is 52500030055.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (550030005257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100002706 + ... + 100008205.

It is an arithmetic number, because the mean of its divisors is an integer number (35101915056).

Almost surely, 2550030005250 is an apocalyptic number.

550030005250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550030005250 is an abundant number, since it is smaller than the sum of its proper divisors (573231276542).

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

550030005250 is a wasteful number, since it uses less digits than its factorization.

550030005250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200010939 (or 200010929 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 25.

The spelling of 550030005250 in words is "five hundred fifty billion, thirty million, five thousand, two hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 125 250 275 550 1375 2750 200010911 400021822 1000054555 2000109110 2200120021 4400240042 5000272775 10000545550 11000600105 22001200210 25001363875 50002727750 55003000525 110006001050 275015002625 550030005250