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70015202712 = 233372131737809
BaseRepresentation
bin100000100110100111…
…0110011010110011000
320200201110221211002000
41001031032303112120
52121342342441322
652055312441000
75026020255300
oct1011516632630
9220643854060
1070015202712
11277698360a4
121169bb49160
1367aa63b340
143562a52600
151c4bb153ac
hex104d3b3598

70015202712 has 768 divisors, whose sum is σ = 265274352000. Its totient is φ = 16888725504.

The previous prime is 70015202707. The next prime is 70015202717. The reversal of 70015202712 is 21720251007.

70015202712 is a `hidden beast` number, since 70 + 0 + 1 + 520 + 2 + 71 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (70015202707) and next prime (70015202717).

It is a super-2 number, since 2×700152027122 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70015202717) 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 191 ways as a sum of consecutive naturals, for example, 86544964 + ... + 86545772.

Almost surely, 270015202712 is an apocalyptic number.

70015202712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70015202712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132637176000).

70015202712 is an abundant number, since it is smaller than the sum of its proper divisors (195259149288).

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

70015202712 is a wasteful number, since it uses less digits than its factorization.

70015202712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

Adding to 70015202712 its reverse (21720251007), we get a palindrome (91735453719).

The spelling of 70015202712 in words is "seventy billion, fifteen million, two hundred two thousand, seven hundred twelve".