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70066908 = 223219102437
BaseRepresentation
bin1000010110100…
…10001011011100
311212211202201200
410023102023130
5120414120113
610541435500
71510362462
oct413221334
9155752650
1070066908
113660733a
121b56bb90
1311693112
14943c832
156240873
hex42d22dc

70066908 has 36 divisors (see below), whose sum is σ = 186437160. Its totient is φ = 22126176.

The previous prime is 70066907. The next prime is 70066939. The reversal of 70066908 is 80966007.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70066907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50535 + ... + 51902.

It is an arithmetic number, because the mean of its divisors is an integer number (5178810).

Almost surely, 270066908 is an apocalyptic number.

It is an amenable number.

70066908 is an abundant number, since it is smaller than the sum of its proper divisors (116370252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70066908 is a wasteful number, since it uses less digits than its factorization.

70066908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102466 (or 102461 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 70066908 is about 8370.5978281124. The cubic root of 70066908 is about 412.2597962417.

The spelling of 70066908 in words is "seventy million, sixty-six thousand, nine hundred eight".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 102437 204874 307311 409748 614622 921933 1229244 1843866 1946303 3687732 3892606 5838909 7785212 11677818 17516727 23355636 35033454 70066908