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2199628550 = 252744913997
BaseRepresentation
bin1000001100011011…
…1010101100000110
312200021222201010002
42003012322230012
514001101103200
61002133401302
7105336351140
oct20306725406
95607881102
102199628550
11a296a6539
12514799232
13290931572
1416c1c1c90
15cd196bd5
hex831bab06

2199628550 has 48 divisors (see below), whose sum is σ = 4686530400. Its totient is φ = 752424960.

The previous prime is 2199628549. The next prime is 2199628553. The reversal of 2199628550 is 558269912.

It is a junction number, because it is equal to n+sod(n) for n = 2199628495 and 2199628504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199628553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150152 + ... + 164148.

It is an arithmetic number, because the mean of its divisors is an integer number (97636050).

Almost surely, 22199628550 is an apocalyptic number.

2199628550 is an abundant number, since it is smaller than the sum of its proper divisors (2486901850).

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

2199628550 is a wasteful number, since it uses less digits than its factorization.

2199628550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14465 (or 14460 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 2199628550 is about 46900.1977607771. The cubic root of 2199628550 is about 1300.5182450507.

The spelling of 2199628550 in words is "two billion, one hundred ninety-nine million, six hundred twenty-eight thousand, five hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 449 898 2245 3143 4490 6286 11225 13997 15715 22450 27994 31430 69985 78575 97979 139970 157150 195958 349925 489895 699850 979790 2449475 4898950 6284653 12569306 31423265 43992571 62846530 87985142 157116325 219962855 314232650 439925710 1099814275 2199628550