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70118400 = 2103521183
BaseRepresentation
bin1000010110111…
…10110000000000
311212221101100210
410023132300000
5120422242100
610542514120
71510665552
oct413366000
9155841323
1070118400
1136641aa0
121b595940
13116b06a1
1494534d2
156250c50
hex42dec00

70118400 has 264 divisors, whose sum is σ = 255858624. Its totient is φ = 16793600.

The previous prime is 70118359. The next prime is 70118401. The reversal of 70118400 is 481107.

It is a tau number, because it is divible by the number of its divisors (264).

It is not an unprimeable number, because it can be changed into a prime (70118401) 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, 844759 + ... + 844841.

Almost surely, 270118400 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 70118400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127929312).

70118400 is an abundant number, since it is smaller than the sum of its proper divisors (185740224).

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

70118400 is a wasteful number, since it uses less digits than its factorization.

70118400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 70118400 is about 8373.6730292029. The cubic root of 70118400 is about 412.3607610862.

Adding to 70118400 its reverse (481107), we get a palindrome (70599507).

The spelling of 70118400 in words is "seventy million, one hundred eighteen thousand, four hundred".