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70611812 = 22171038409
BaseRepresentation
bin1000011010101…
…11001101100100
311220212110012022
410031113031210
5121034034222
611001242312
71515122225
oct415271544
9156773168
1070611812
1136949777
121b793398
131182414b
14954124c
1562ec042
hex4357364

70611812 has 12 divisors (see below), whose sum is σ = 130839660. Its totient is φ = 33229056.

The previous prime is 70611811. The next prime is 70611823. The reversal of 70611812 is 21811607.

It can be written as a sum of positive squares in 2 ways, for example, as 58736896 + 11874916 = 7664^2 + 3446^2 .

It is not an unprimeable number, because it can be changed into a prime (70611811) 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, 519137 + ... + 519272.

It is an arithmetic number, because the mean of its divisors is an integer number (10903305).

Almost surely, 270611812 is an apocalyptic number.

It is an amenable number.

70611812 is a deficient number, since it is larger than the sum of its proper divisors (60227848).

70611812 is a wasteful number, since it uses less digits than its factorization.

70611812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038430 (or 1038428 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 70611812 is about 8403.0834816750. The cubic root of 70611812 is about 413.3257401195.

The spelling of 70611812 in words is "seventy million, six hundred eleven thousand, eight hundred twelve".

Divisors: 1 2 4 17 34 68 1038409 2076818 4153636 17652953 35305906 70611812