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70531075000 = 23555353231
BaseRepresentation
bin100000110101111111…
…0101100101110111000
320202001102122211211001
41001223332230232320
52123421423400000
652222421414344
75044553150161
oct1015376545670
9222042584731
1070531075000
1127a03a53631
121180486a3b4
13686048cb09
1435b137a768
151c7c06646a
hex106bfacbb8

70531075000 has 96 divisors (see below), whose sum is σ = 168418595520. Its totient is φ = 27679600000.

The previous prime is 70531074967. The next prime is 70531075007. The reversal of 70531075000 is 57013507.

It is a self number, because there is not a number n which added to its sum of digits gives 70531075000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70531075007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1298385 + ... + 1351615.

It is an arithmetic number, because the mean of its divisors is an integer number (1754360370).

Almost surely, 270531075000 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 70531075000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84209297760).

70531075000 is an abundant number, since it is smaller than the sum of its proper divisors (97887520520).

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

70531075000 is an equidigital number, since it uses as much as digits as its factorization.

70531075000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53315 (or 53291 counting only the distinct ones).

The product of its (nonzero) digits is 3675, while the sum is 28.

Adding to 70531075000 its reverse (57013507), we get a palindrome (70588088507).

The spelling of 70531075000 in words is "seventy billion, five hundred thirty-one million, seventy-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 53 100 106 125 200 212 250 265 424 500 530 625 1000 1060 1250 1325 2120 2500 2650 3125 5000 5300 6250 6625 10600 12500 13250 25000 26500 33125 53000 53231 66250 106462 132500 165625 212924 265000 266155 331250 425848 532310 662500 1064620 1325000 1330775 2129240 2661550 2821243 5323100 5642486 6653875 10646200 11284972 13307750 14106215 22569944 26615500 28212430 33269375 53231000 56424860 66538750 70531075 112849720 133077500 141062150 166346875 266155000 282124300 332693750 352655375 564248600 665387500 705310750 1330775000 1410621500 1763276875 2821243000 3526553750 7053107500 8816384375 14106215000 17632768750 35265537500 70531075000