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70225186 = 237948989
BaseRepresentation
bin1000010111110…
…00110100100010
311220010210211211
410023320310202
5120434201221
610545100334
71511622103
oct413706442
9156123754
1070225186
1136705249
121b6276aa
131171a185
1494803aa
1562726e1
hex42f8d22

70225186 has 8 divisors (see below), whose sum is σ = 108184860. Its totient is φ = 34163568.

The previous prime is 70225171. The next prime is 70225189. The reversal of 70225186 is 68152207.

It can be written as a sum of positive squares in 2 ways, for example, as 68973025 + 1252161 = 8305^2 + 1119^2 .

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

It is not an unprimeable number, because it can be changed into a prime (70225189) 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, 474421 + ... + 474568.

Almost surely, 270225186 is an apocalyptic number.

70225186 is a deficient number, since it is larger than the sum of its proper divisors (37959674).

70225186 is a wasteful number, since it uses less digits than its factorization.

70225186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949028.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 70225186 is about 8380.0468972435. The cubic root of 70225186 is about 412.5699882470.

The spelling of 70225186 in words is "seventy million, two hundred twenty-five thousand, one hundred eighty-six".

Divisors: 1 2 37 74 948989 1897978 35112593 70225186