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2198982772 = 22778535099
BaseRepresentation
bin1000001100010001…
…1101000001110100
312200020202220021101
42003010131001310
514000414422042
61002111455444
7105331021330
oct20304350164
95606686241
102198982772
11a292a5338
12514527584
1329076664c
1416c0947c0
15cd0ba6b7
hex8311d074

2198982772 has 12 divisors (see below), whose sum is σ = 4397965600. Its totient is φ = 942421176.

The previous prime is 2198982769. The next prime is 2198982817. The reversal of 2198982772 is 2772898912.

2198982772 is an admirable number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

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, 39267522 + ... + 39267577.

Almost surely, 22198982772 is an apocalyptic number.

It is an amenable number.

2198982772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2198982772 is a wasteful number, since it uses less digits than its factorization.

2198982772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78535110 (or 78535108 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 55.

The square root of 2198982772 is about 46893.3126575634. The cubic root of 2198982772 is about 1300.3909617004.

The spelling of 2198982772 in words is "two billion, one hundred ninety-eight million, nine hundred eighty-two thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 14 28 78535099 157070198 314140396 549745693 1099491386 2198982772