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70223705 = 567209623
BaseRepresentation
bin1000010111110…
…00011101011001
311220010201210222
410023320131121
5120434124310
610545045425
71511614556
oct413703531
9156121728
1070223705
1136704122
121b626875
13117195b6
14947da2d
156272055
hex42f8759

70223705 has 8 divisors (see below), whose sum is σ = 85526592. Its totient is φ = 55340208.

The previous prime is 70223701. The next prime is 70223707. The reversal of 70223705 is 50732207.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70223705 - 22 = 70223701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70223701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104477 + ... + 105146.

It is an arithmetic number, because the mean of its divisors is an integer number (10690824).

Almost surely, 270223705 is an apocalyptic number.

It is an amenable number.

70223705 is a deficient number, since it is larger than the sum of its proper divisors (15302887).

70223705 is a wasteful number, since it uses less digits than its factorization.

70223705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209695.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 70223705 is about 8379.9585321170. The cubic root of 70223705 is about 412.5670879559.

The spelling of 70223705 in words is "seventy million, two hundred twenty-three thousand, seven hundred five".

Divisors: 1 5 67 335 209623 1048115 14044741 70223705