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70199623 = 1319476047
BaseRepresentation
bin1000010111100…
…10100101000111
311220002111210001
410023302211013
5120432341443
610544342131
71511454424
oct413624507
9156074701
1070199623
113669801a
121b614947
131170b650
149474d4b
156269d4d
hex42f2947

70199623 has 16 divisors (see below), whose sum is σ = 81285120. Its totient is φ = 60073056.

The previous prime is 70199621. The next prime is 70199629. The reversal of 70199623 is 32699107.

It is a cyclic number.

It is not a de Polignac number, because 70199623 - 21 = 70199621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70199621) 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 15 ways as a sum of consecutive naturals, for example, 8586 + ... + 14632.

It is an arithmetic number, because the mean of its divisors is an integer number (5080320).

Almost surely, 270199623 is an apocalyptic number.

70199623 is a deficient number, since it is larger than the sum of its proper divisors (11085497).

70199623 is a wasteful number, since it uses less digits than its factorization.

70199623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6126.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 70199623 is about 8378.5215282889. The cubic root of 70199623 is about 412.5199216580.

The spelling of 70199623 in words is "seventy million, one hundred ninety-nine thousand, six hundred twenty-three".

Divisors: 1 13 19 47 247 611 893 6047 11609 78611 114893 284209 1493609 3694717 5399971 70199623