Base | Representation |
---|---|
bin | 100010111101000000… |
… | …1100101111011001110 |
3 | 21011202011210112001111 |
4 | 1011322001211323032 |
5 | 2212211242304440 |
6 | 54252144202234 |
7 | 5265045524440 |
oct | 1057201457316 |
9 | 234664715044 |
10 | 75061681870 |
11 | 299193a962a |
12 | 1266a00937a |
13 | 7102cc1896 |
14 | 38c0d72490 |
15 | 1e44b9d4ea |
hex | 117a065ece |
75061681870 has 64 divisors (see below), whose sum is σ = 157078563840. Its totient is φ = 25292881152.
The previous prime is 75061681831. The next prime is 75061681957. The reversal of 75061681870 is 7818616057.
It is a congruent number.
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 31 ways as a sum of consecutive naturals, for example, 2040682 + ... + 2077138.
It is an arithmetic number, because the mean of its divisors is an integer number (2454352560).
Almost surely, 275061681870 is an apocalyptic number.
75061681870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
75061681870 is an abundant number, since it is smaller than the sum of its proper divisors (82016881970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
75061681870 is a wasteful number, since it uses less digits than its factorization.
75061681870 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 36977.
The product of its (nonzero) digits is 564480, while the sum is 49.
The spelling of 75061681870 in words is "seventy-five billion, sixty-one million, six hundred eighty-one thousand, eight hundred seventy".
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