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82531313600 = 265251582071
BaseRepresentation
bin100110011011100111…
…1111110011111000000
321220000202020010110112
41030313033332133000
52323011004013400
6101525300250452
75651126406431
oct1146717763700
9256022203415
1082531313600
113200185849a
1213bb36a0a28
137a236a9108
143dcd01b488
152230832835
hex13373fe7c0

82531313600 has 42 divisors (see below), whose sum is σ = 203078617464. Its totient is φ = 33012524800.

The previous prime is 82531313587. The next prime is 82531313611. The reversal of 82531313600 is 631313528.

It is a super-2 number, since 2×825313136002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25789436 + ... + 25792635.

Almost surely, 282531313600 is an apocalyptic number.

82531313600 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82531313600 is an abundant number, since it is smaller than the sum of its proper divisors (120547303864).

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

82531313600 is a wasteful number, since it uses less digits than its factorization.

82531313600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51582093 (or 51582078 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 82531313600 in words is "eighty-two billion, five hundred thirty-one million, three hundred thirteen thousand, six hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 51582071 103164142 206328284 257910355 412656568 515820710 825313136 1031641420 1289551775 1650626272 2063282840 2579103550 3301252544 4126565680 5158207100 8253131360 10316414200 16506262720 20632828400 41265656800 82531313600