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42905619432578 = 2789145123731693
BaseRepresentation
bin10011100000101101111100…
…01101001000010010000010
312121220201220101111200211102
421300112332031020102002
521110431202033320303
6231130323000414402
712015554150522510
oct1160267615102202
9177821811450742
1042905619432578
1112742197693601
12498b491177402
131ac2ca0887466
14a849007b74b0
154e6118738288
hex2705be348482

42905619432578 has 32 divisors (see below), whose sum is σ = 74430186526080. Its totient is φ = 18168983395200.

The previous prime is 42905619432553. The next prime is 42905619432593. The reversal of 42905619432578 is 87523491650924.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10057901 + ... + 13673792.

It is an arithmetic number, because the mean of its divisors is an integer number (2325943328940).

It is a 1-persistent number, because it is pandigital, but 2⋅42905619432578 = 85811238865156 is not.

Almost surely, 242905619432578 is an apocalyptic number.

42905619432578 is a deficient number, since it is larger than the sum of its proper divisors (31524567093502).

42905619432578 is a wasteful number, since it uses less digits than its factorization.

42905619432578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23733242.

The product of its (nonzero) digits is 130636800, while the sum is 65.

The spelling of 42905619432578 in words is "forty-two trillion, nine hundred five billion, six hundred nineteen million, four hundred thirty-two thousand, five hundred seventy-eight".

Divisors: 1 2 7 14 89 178 623 1246 1451 2902 10157 20314 129139 258278 903973 1807946 23731693 47463386 166121851 332243702 2112120677 4224241354 14784844739 29569689478 34434686543 68869373086 241042805801 482085611602 3064687102327 6129374204654 21452809716289 42905619432578