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2198088628 = 221787307511
BaseRepresentation
bin1000001100000100…
…0010101110110100
312200012002110201221
42003001002232310
514000202314003
61002040400124
7105320305441
oct20301025664
95605073657
102198088628
11a2884457a
12514176044
13290512678
1416bd009c8
15cce907bd
hex83042bb4

2198088628 has 12 divisors (see below), whose sum is σ = 3848820192. Its totient is φ = 1098425720.

The previous prime is 2198088617. The next prime is 2198088643. The reversal of 2198088628 is 8268808912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146608 + ... + 160903.

It is an arithmetic number, because the mean of its divisors is an integer number (320735016).

Almost surely, 22198088628 is an apocalyptic number.

It is an amenable number.

2198088628 is a deficient number, since it is larger than the sum of its proper divisors (1650731564).

2198088628 is a wasteful number, since it uses less digits than its factorization.

2198088628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309302 (or 309300 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 52.

The square root of 2198088628 is about 46883.7778767880. Note that the first 3 decimals coincide. The cubic root of 2198088628 is about 1300.2146840714.

The spelling of 2198088628 in words is "two billion, one hundred ninety-eight million, eighty-eight thousand, six hundred twenty-eight".

Divisors: 1 2 4 1787 3574 7148 307511 615022 1230044 549522157 1099044314 2198088628