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296805980 = 22567221497
BaseRepresentation
bin10001101100001…
…110011001011100
3202200111022021002
4101230032121130
51101440242410
645241325432
710232544362
oct2154163134
9680438232
10296805980
111425a27a9
1283496878
1349650053
142b5c1632
151b0cc7a5
hex11b0e65c

296805980 has 24 divisors (see below), whose sum is σ = 632598288. Its totient is φ = 116949888.

The previous prime is 296805947. The next prime is 296805991. The reversal of 296805980 is 89508692.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109409 + ... + 112088.

It is an arithmetic number, because the mean of its divisors is an integer number (26358262).

Almost surely, 2296805980 is an apocalyptic number.

296805980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

296805980 is an abundant number, since it is smaller than the sum of its proper divisors (335792308).

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

296805980 is a wasteful number, since it uses less digits than its factorization.

296805980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221573 (or 221571 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 296805980 is about 17228.0579288555. The cubic root of 296805980 is about 667.0487104664.

The spelling of 296805980 in words is "two hundred ninety-six million, eight hundred five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 221497 442994 885988 1107485 2214970 4429940 14840299 29680598 59361196 74201495 148402990 296805980