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70000121200 = 2452712464793
BaseRepresentation
bin100000100110001010…
…1010001010101110000
320200200102120121010111
41001030111101111300
52121330012334300
652054013311104
75025445133002
oct1011425212560
9220612517114
1070000121200
1127761275139
1211696a95494
1367a748a879
143560a48372
151c4a6369ba
hex104c551570

70000121200 has 60 divisors (see below), whose sum is σ = 170544026448. Its totient is φ = 27605670400.

The previous prime is 70000121161. The next prime is 70000121203. The reversal of 70000121200 is 212100007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70000121203) 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, 1203997 + ... + 1260796.

Almost surely, 270000121200 is an apocalyptic number.

It is an amenable number.

70000121200 is an abundant number, since it is smaller than the sum of its proper divisors (100543905248).

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

70000121200 is a wasteful number, since it uses less digits than its factorization.

70000121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464882 (or 2464871 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 13.

Adding to 70000121200 its reverse (212100007), we get a palindrome (70212221207).

The spelling of 70000121200 in words is "seventy billion, one hundred twenty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 71 80 100 142 200 284 355 400 568 710 1136 1420 1775 2840 3550 5680 7100 14200 28400 2464793 4929586 9859172 12323965 19718344 24647930 39436688 49295860 61619825 98591720 123239650 175000303 197183440 246479300 350000606 492958600 700001212 875001515 985917200 1400002424 1750003030 2800004848 3500006060 4375007575 7000012120 8750015150 14000024240 17500030300 35000060600 70000121200