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80988613632 = 2103217516931
BaseRepresentation
bin100101101101101001…
…1000010110000000000
321202001020100211221200
41023123103002300000
52311331041114012
6101112231021200
75564654600043
oct1133323026000
9252036324850
1080988613632
113138aa63143
1213842b0a800
137838bb63b4
143cc41a0c5a
1521901a13dc
hex12db4c2c00

80988613632 has 132 divisors (see below), whose sum is σ = 247609394136. Its totient is φ = 25408143360.

The previous prime is 80988613619. The next prime is 80988613639. The reversal of 80988613632 is 23631688908.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80988613639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101794 + ... + 415137.

Almost surely, 280988613632 is an apocalyptic number.

It is an amenable number.

80988613632 is an abundant number, since it is smaller than the sum of its proper divisors (166620780504).

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

80988613632 is a wasteful number, since it uses less digits than its factorization.

80988613632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516974 (or 516953 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 80988613632 in words is "eighty billion, nine hundred eighty-eight million, six hundred thirteen thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 64 68 72 96 102 128 136 144 153 192 204 256 272 288 306 384 408 512 544 576 612 768 816 1024 1088 1152 1224 1536 1632 2176 2304 2448 3072 3264 4352 4608 4896 6528 8704 9216 9792 13056 17408 19584 26112 39168 52224 78336 156672 516931 1033862 1550793 2067724 3101586 4135448 4652379 6203172 8270896 8787827 9304758 12406344 16541792 17575654 18609516 24812688 26363481 33083584 35151308 37219032 49625376 52726962 66167168 70302616 74438064 79090443 99250752 105453924 132334336 140605232 148876128 158180886 198501504 210907848 264668672 281210464 297752256 316361772 397003008 421815696 529337344 562420928 595504512 632723544 794006016 843631392 1124841856 1191009024 1265447088 1588012032 1687262784 2249683712 2382018048 2530894176 3374525568 4499367424 4764036096 5061788352 6749051136 8998734848 10123576704 13498102272 20247153408 26996204544 40494306816 80988613632