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85001616800 = 2552394326947
BaseRepresentation
bin100111100101001111…
…1011011110110100000
322010101220112112101122
41033022133123312200
52343040403214200
6103014343351412
76066263551532
oct1171237336640
9263356475348
1085001616800
113305a218891
1214582a52568
13802840b599
14418513b852
152327644385
hex13ca7dbda0

85001616800 has 72 divisors (see below), whose sum is σ = 207570527136. Its totient is φ = 33990762240.

The previous prime is 85001616781. The next prime is 85001616803. The reversal of 85001616800 is 861610058.

It is a super-2 number, since 2×850016168002 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85001616803) 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, 3140927 + ... + 3167873.

It is an arithmetic number, because the mean of its divisors is an integer number (2882923988).

Almost surely, 285001616800 is an apocalyptic number.

85001616800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85001616800 is an abundant number, since it is smaller than the sum of its proper divisors (122568910336).

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

85001616800 is a wasteful number, since it uses less digits than its factorization.

85001616800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30910 (or 30897 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 85001616800 in words is "eighty-five billion, one million, six hundred sixteen thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 3943 7886 15772 19715 26947 31544 39430 53894 63088 78860 98575 107788 126176 134735 157720 197150 215576 269470 315440 394300 431152 538940 630880 673675 788600 862304 1077880 1347350 1577200 2155760 2694700 3154400 4311520 5389400 10778800 21557600 106252021 212504042 425008084 531260105 850016168 1062520210 1700032336 2125040420 2656300525 3400064672 4250080840 5312601050 8500161680 10625202100 17000323360 21250404200 42500808400 85001616800