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70384752 = 2432975039
BaseRepresentation
bin1000011000111…
…11110001110000
311220102220201200
410030133301300
5121004303002
610552331200
71513155234
oct414376160
9156386650
1070384752
1136804119
121b6a3b00
13117749a9
1494c25c4
1562a4b1c
hex431fc70

70384752 has 60 divisors (see below), whose sum is σ = 199049760. Its totient is φ = 23215104.

The previous prime is 70384729. The next prime is 70384757. The reversal of 70384752 is 25748307.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70384757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11449 + ... + 16487.

It is an arithmetic number, because the mean of its divisors is an integer number (3317496).

Almost surely, 270384752 is an apocalyptic number.

70384752 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 70384752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99524880).

70384752 is an abundant number, since it is smaller than the sum of its proper divisors (128665008).

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

70384752 is a wasteful number, since it uses less digits than its factorization.

70384752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150 (or 5141 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 70384752 is about 8389.5620863070. The cubic root of 70384752 is about 412.8822330315.

The spelling of 70384752 in words is "seventy million, three hundred eighty-four thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 97 144 194 291 388 582 776 873 1164 1552 1746 2328 3492 4656 5039 6984 10078 13968 15117 20156 30234 40312 45351 60468 80624 90702 120936 181404 241872 362808 488783 725616 977566 1466349 1955132 2932698 3910264 4399047 5865396 7820528 8798094 11730792 17596188 23461584 35192376 70384752