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70392064 = 281312099
BaseRepresentation
bin1000011001000…
…01100100000000
311220110021202111
410030201210000
5121010021224
610552425104
71513215451
oct414414400
9156407674
1070392064
1136809666
121b6a8194
1311778112
1494c5128
1562a6d94
hex4321900

70392064 has 36 divisors (see below), whose sum is σ = 141649200. Its totient is φ = 34910720.

The previous prime is 70392037. The next prime is 70392067. The reversal of 70392064 is 46029307.

It is not an unprimeable number, because it can be changed into a prime (70392067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32487 + ... + 34585.

It is an arithmetic number, because the mean of its divisors is an integer number (3934700).

Almost surely, 270392064 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 70392064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70824600).

70392064 is an abundant number, since it is smaller than the sum of its proper divisors (71257136).

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

70392064 is a wasteful number, since it uses less digits than its factorization.

70392064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246 (or 2232 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 70392064 is about 8389.9978545885. The cubic root of 70392064 is about 412.8965301166.

The spelling of 70392064 in words is "seventy million, three hundred ninety-two thousand, sixty-four".

Divisors: 1 2 4 8 16 32 64 128 131 256 262 524 1048 2096 2099 4192 4198 8384 8396 16768 16792 33536 33584 67168 134336 268672 274969 537344 549938 1099876 2199752 4399504 8799008 17598016 35196032 70392064