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70146605 = 5103136207
BaseRepresentation
bin1000010111001…
…01101000101101
311212222211001102
410023211220231
5120424142410
610543252445
71511144024
oct413455055
9155884042
1070146605
1136661201
121b5aa125
13116c0489
14945d8bb
1562592a5
hex42e5a2d

70146605 has 8 divisors (see below), whose sum is σ = 84993792. Its totient is φ = 55572048.

The previous prime is 70146589. The next prime is 70146611. The reversal of 70146605 is 50664107.

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 70146605 - 24 = 70146589 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 67589 + ... + 68618.

It is an arithmetic number, because the mean of its divisors is an integer number (10624224).

Almost surely, 270146605 is an apocalyptic number.

It is an amenable number.

70146605 is a deficient number, since it is larger than the sum of its proper divisors (14847187).

70146605 is a wasteful number, since it uses less digits than its factorization.

70146605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136315.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 70146605 is about 8375.3570073162. The cubic root of 70146605 is about 412.4160441319.

The spelling of 70146605 in words is "seventy million, one hundred forty-six thousand, six hundred five".

Divisors: 1 5 103 515 136207 681035 14029321 70146605