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85970107800 = 233252277172423
BaseRepresentation
bin101000000010000110…
…1111011110110011000
322012220101220222021200
41100010031323312120
52402031321422200
6103254421434200
76132263600463
oct1200415736630
9265811828250
1085970107800
1133506980475
12147b326b960
138150c65995
144237a062da
15238269e800
hex140437bd98

85970107800 has 144 divisors (see below), whose sum is σ = 289760256240. Its totient is φ = 22842466560.

The previous prime is 85970107781. The next prime is 85970107807. The reversal of 85970107800 is 870107958.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85970107807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 412389 + ... + 584811.

Almost surely, 285970107800 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 85970107800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144880128120).

85970107800 is an abundant number, since it is smaller than the sum of its proper divisors (203790148440).

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

85970107800 is a wasteful number, since it uses less digits than its factorization.

85970107800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172722 (or 172710 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The spelling of 85970107800 in words is "eighty-five billion, nine hundred seventy million, one hundred seven thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 30 36 40 45 50 60 72 75 90 100 120 150 180 200 225 277 300 360 450 554 600 831 900 1108 1385 1662 1800 2216 2493 2770 3324 4155 4986 5540 6648 6925 8310 9972 11080 12465 13850 16620 19944 20775 24930 27700 33240 41550 49860 55400 62325 83100 99720 124650 166200 172423 249300 344846 498600 517269 689692 862115 1034538 1379384 1551807 1724230 2069076 2586345 3103614 3448460 4138152 4310575 5172690 6207228 6896920 7759035 8621150 10345380 12414456 12931725 15518070 17242300 20690760 25863450 31036140 34484600 38795175 47761171 51726900 62072280 77590350 95522342 103453800 143283513 155180700 191044684 238805855 286567026 310361400 382089368 429850539 477611710 573134052 716417565 859701078 955223420 1146268104 1194029275 1432835130 1719402156 1910446840 2149252695 2388058550 2865670260 3438804312 3582087825 4298505390 4776117100 5731340520 7164175650 8597010780 9552234200 10746263475 14328351300 17194021560 21492526950 28656702600 42985053900 85970107800