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8912032992 = 253319228573
BaseRepresentation
bin10000100110011001…
…01101010011100000
3212000002120011222000
420103030231103200
5121222440023432
64032155444000
7433564013322
oct102314552340
925002504860
108912032992
113863679325
121888756600
13ac0490805
14607877612
1537260257c
hex21332d4e0

8912032992 has 144 divisors (see below), whose sum is σ = 27434468880. Its totient is φ = 2814227712.

The previous prime is 8912032979. The next prime is 8912033003. The reversal of 8912032992 is 2992302198.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297618 + ... + 326190.

It is an arithmetic number, because the mean of its divisors is an integer number (190517145).

Almost surely, 28912032992 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 8912032992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13717234440).

8912032992 is an abundant number, since it is smaller than the sum of its proper divisors (18522435888).

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

8912032992 is a wasteful number, since it uses less digits than its factorization.

8912032992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28630 (or 28597 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 8912032992 is about 94403.5645089739. The cubic root of 8912032992 is about 2073.2846319301.

The spelling of 8912032992 in words is "eight billion, nine hundred twelve million, thirty-two thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 72 76 96 108 114 144 152 171 216 228 288 304 342 361 432 456 513 608 684 722 864 912 1026 1083 1368 1444 1824 2052 2166 2736 2888 3249 4104 4332 5472 5776 6498 8208 8664 9747 11552 12996 16416 17328 19494 25992 28573 34656 38988 51984 57146 77976 85719 103968 114292 155952 171438 228584 257157 311904 342876 457168 514314 542887 685752 771471 914336 1028628 1085774 1371504 1542942 1628661 2057256 2171548 2743008 3085884 3257322 4114512 4343096 4885983 6171768 6514644 8229024 8686192 9771966 10314853 12343536 13029288 14657949 17372384 19543932 20629706 24687072 26058576 29315898 30944559 39087864 41259412 52117152 58631796 61889118 78175728 82518824 92833677 117263592 123778236 156351456 165037648 185667354 234527184 247556472 278501031 330075296 371334708 469054368 495112944 557002062 742669416 990225888 1114004124 1485338832 2228008248 2970677664 4456016496 8912032992