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70479448 = 2313677687
BaseRepresentation
bin1000011001101…
…10111001011000
311220121201121221
410030312321120
5121020320243
610554341424
71514031304
oct414667130
9156551557
1070479448
1136869286
121b72a874
13117a8b20
149508d04
1562c2bed
hex4336e58

70479448 has 16 divisors (see below), whose sum is σ = 142314480. Its totient is φ = 32528928.

The previous prime is 70479443. The next prime is 70479449. The reversal of 70479448 is 84497407.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70479443) 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 3 ways as a sum of consecutive naturals, for example, 338740 + ... + 338947.

It is an arithmetic number, because the mean of its divisors is an integer number (8894655).

Almost surely, 270479448 is an apocalyptic number.

It is an amenable number.

70479448 is an abundant number, since it is smaller than the sum of its proper divisors (71835032).

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

70479448 is a wasteful number, since it uses less digits than its factorization.

70479448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677706 (or 677702 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 70479448 is about 8395.2038688766. The cubic root of 70479448 is about 413.0673146653.

The spelling of 70479448 in words is "seventy million, four hundred seventy-nine thousand, four hundred forty-eight".

Divisors: 1 2 4 8 13 26 52 104 677687 1355374 2710748 5421496 8809931 17619862 35239724 70479448