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70403056 = 2419231589
BaseRepresentation
bin1000011001001…
…00001111110000
311220110211211121
410030210033300
5121010344211
610552552024
71513262503
oct414441760
9156424747
1070403056
1136816949
121b6b2614
1311780119
1494c913a
1562aa271
hex43243f0

70403056 has 20 divisors (see below), whose sum is σ = 143585800. Its totient is φ = 33348672.

The previous prime is 70403041. The next prime is 70403059. The reversal of 70403056 is 65030407.

It is a self number, because there is not a number n which added to its sum of digits gives 70403056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70403059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115491 + ... + 116098.

It is an arithmetic number, because the mean of its divisors is an integer number (7179290).

Almost surely, 270403056 is an apocalyptic number.

70403056 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

70403056 is an abundant number, since it is smaller than the sum of its proper divisors (73182744).

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

70403056 is a wasteful number, since it uses less digits than its factorization.

70403056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231616 (or 231610 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 70403056 is about 8390.6528947395. The cubic root of 70403056 is about 412.9180208083.

The spelling of 70403056 in words is "seventy million, four hundred three thousand, fifty-six".

Divisors: 1 2 4 8 16 19 38 76 152 304 231589 463178 926356 1852712 3705424 4400191 8800382 17600764 35201528 70403056