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70227644 = 2219191921
BaseRepresentation
bin1000010111110…
…01011010111100
311220010221012212
410023321122330
5120434241034
610545115552
71511632214
oct413713274
9156127185
1070227644
1136707083
121b628bb8
131171b326
149481244
1562732ce
hex42f96bc

70227644 has 12 divisors (see below), whose sum is σ = 123543168. Its totient is φ = 34929600.

The previous prime is 70227637. The next prime is 70227649. The reversal of 70227644 is 44672207.

It is a self number, because there is not a number n which added to its sum of digits gives 70227644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70227649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45197 + ... + 46724.

It is an arithmetic number, because the mean of its divisors is an integer number (10295264).

Almost surely, 270227644 is an apocalyptic number.

It is an amenable number.

70227644 is a deficient number, since it is larger than the sum of its proper divisors (53315524).

70227644 is a wasteful number, since it uses less digits than its factorization.

70227644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92116 (or 92114 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 70227644 is about 8380.1935538507. The cubic root of 70227644 is about 412.5748017394.

The spelling of 70227644 in words is "seventy million, two hundred twenty-seven thousand, six hundred forty-four".

Divisors: 1 2 4 191 382 764 91921 183842 367684 17556911 35113822 70227644