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70582408 = 23135911503
BaseRepresentation
bin1000011010100…
…00000010001000
311220210221212021
410031100002020
5121032114113
611000454224
71514640421
oct415200210
9156727767
1070582408
1136929676
121b77a374
1311813950
149534648
1562e348d
hex4350088

70582408 has 32 divisors (see below), whose sum is σ = 144950400. Its totient is φ = 32021568.

The previous prime is 70582403. The next prime is 70582411. The reversal of 70582408 is 80428507.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (70582403) 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 7 ways as a sum of consecutive naturals, for example, 385 + ... + 11887.

It is an arithmetic number, because the mean of its divisors is an integer number (4529700).

Almost surely, 270582408 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 70582408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72475200).

70582408 is an abundant number, since it is smaller than the sum of its proper divisors (74367992).

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

70582408 is a wasteful number, since it uses less digits than its factorization.

70582408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11581 (or 11577 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 70582408 is about 8401.3337036449. Note that the first 3 decimals coincide. The cubic root of 70582408 is about 413.2683601190.

The spelling of 70582408 in words is "seventy million, five hundred eighty-two thousand, four hundred eight".

Divisors: 1 2 4 8 13 26 52 59 104 118 236 472 767 1534 3068 6136 11503 23006 46012 92024 149539 299078 598156 678677 1196312 1357354 2714708 5429416 8822801 17645602 35291204 70582408