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968641280 = 2851939829
BaseRepresentation
bin111001101111000…
…100101100000000
32111111200002000222
4321233010230000
53440433010110
6240041202212
733001213025
oct7157045400
92444602028
10968641280
11457855592
12230490368
131258aa929
149290754c
155a089c55
hex39bc4b00

968641280 has 72 divisors (see below), whose sum is σ = 2442375600. Its totient is φ = 367054848.

The previous prime is 968641237. The next prime is 968641301. The reversal of 968641280 is 82146869.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4406 + ... + 44234.

Almost surely, 2968641280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 968641280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221187800).

968641280 is an abundant number, since it is smaller than the sum of its proper divisors (1473734320).

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

968641280 is a wasteful number, since it uses less digits than its factorization.

968641280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39869 (or 39855 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 968641280 is about 31123.0024258586. The cubic root of 968641280 is about 989.4358858116.

The spelling of 968641280 in words is "nine hundred sixty-eight million, six hundred forty-one thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 128 152 160 190 256 304 320 380 608 640 760 1216 1280 1520 2432 3040 4864 6080 12160 24320 39829 79658 159316 199145 318632 398290 637264 756751 796580 1274528 1513502 1593160 2549056 3027004 3186320 3783755 5098112 6054008 6372640 7567510 10196224 12108016 12745280 15135020 24216032 25490560 30270040 48432064 50981120 60540080 96864128 121080160 193728256 242160320 484320640 968641280