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70378670 = 257037867
BaseRepresentation
bin1000011000111…
…10010010101110
311220102121101102
410030132102232
5121004104140
610552243102
71513131425
oct414362256
9156377342
1070378670
11367aa59a
121b6a0492
1311771cab
1494c02bc
1562a2e15
hex431e4ae

70378670 has 8 divisors (see below), whose sum is σ = 126681624. Its totient is φ = 28151464.

The previous prime is 70378667. The next prime is 70378697. The reversal of 70378670 is 7687307.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 3518924 + ... + 3518943.

It is an arithmetic number, because the mean of its divisors is an integer number (15835203).

Almost surely, 270378670 is an apocalyptic number.

70378670 is a deficient number, since it is larger than the sum of its proper divisors (56302954).

70378670 is a wasteful number, since it uses less digits than its factorization.

70378670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7037874.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 70378670 is about 8389.1996042531. The cubic root of 70378670 is about 412.8703401996.

The spelling of 70378670 in words is "seventy million, three hundred seventy-eight thousand, six hundred seventy".

Divisors: 1 2 5 10 7037867 14075734 35189335 70378670