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985069992 = 233471495861
BaseRepresentation
bin111010101101101…
…111100110101000
32112122120201222210
4322231233212220
54004134214432
6241425245120
733260646114
oct7255574650
92478521883
10985069992
11466056735
12235a937a0
1312911066a
1494b82744
155b7328cc
hex3ab6f9a8

985069992 has 64 divisors (see below), whose sum is σ = 2532384000. Its totient is φ = 319159040.

The previous prime is 985069973. The next prime is 985070011. The reversal of 985069992 is 299960589.

It is an interprime number because it is at equal distance from previous prime (985069973) and next prime (985070011).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165142 + ... + 171002.

It is an arithmetic number, because the mean of its divisors is an integer number (39568500).

Almost surely, 2985069992 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 985069992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1266192000).

985069992 is an abundant number, since it is smaller than the sum of its proper divisors (1547314008).

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

985069992 is a wasteful number, since it uses less digits than its factorization.

985069992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6066 (or 6062 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 57.

The square root of 985069992 is about 31385.8246984208. The cubic root of 985069992 is about 994.9983559311.

The spelling of 985069992 in words is "nine hundred eighty-five million, sixty-nine thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 47 94 141 149 188 282 298 376 447 564 596 894 1128 1192 1788 3576 5861 7003 11722 14006 17583 21009 23444 28012 35166 42018 46888 56024 70332 84036 140664 168072 275467 550934 826401 873289 1101868 1652802 1746578 2203736 2619867 3305604 3493156 5239734 6611208 6986312 10479468 20958936 41044583 82089166 123133749 164178332 246267498 328356664 492534996 985069992