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70011161280 = 2632558741413
BaseRepresentation
bin100000100110011111…
…1011000101011000000
320200201012100111021100
41001030333120223000
52121340324130110
652055050054400
75025641023554
oct1011477305300
9220635314240
1070011161280
1127767525775
121169a71a400
1367a9854968
1435622bd864
151c4b5b7bc0
hex104cfd8ac0

70011161280 has 168 divisors, whose sum is σ = 241225285392. Its totient is φ = 18637387776.

The previous prime is 70011161243. The next prime is 70011161281. The reversal of 70011161280 is 8216111007.

It is not an unprimeable number, because it can be changed into a prime (70011161281) 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, 1669854 + ... + 1711266.

It is an arithmetic number, because the mean of its divisors is an integer number (1435864794).

Almost surely, 270011161280 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 70011161280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120612642696).

70011161280 is an abundant number, since it is smaller than the sum of its proper divisors (171214124112).

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

70011161280 is a wasteful number, since it uses less digits than its factorization.

70011161280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42023 (or 42010 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

Adding to 70011161280 its reverse (8216111007), we get a palindrome (78227272287).

The spelling of 70011161280 in words is "seventy billion, eleven million, one hundred sixty-one thousand, two hundred eighty".