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170139130640 = 24514914273417
BaseRepresentation
bin1001111001110100010…
…1010001101100010000
3121021011021210100110222
42132131011101230100
510241421104140030
6210054424012212
715202130514563
oct2363505215420
9537137710428
10170139130640
1166179116076
1228b83301068
1313075a1b7cb
1483403324da
15465bb7e3e5
hex279d151b10

170139130640 has 40 divisors (see below), whose sum is σ = 398228362200. Its totient is φ = 67598898176.

The previous prime is 170139130627. The next prime is 170139130673. The reversal of 170139130640 is 46031931071.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3436773376 + 166702357264 = 58624^2 + 408292^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 170139130640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7124789 + ... + 7148628.

It is an arithmetic number, because the mean of its divisors is an integer number (9955709055).

Almost surely, 2170139130640 is an apocalyptic number.

170139130640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

170139130640 is an abundant number, since it is smaller than the sum of its proper divisors (228089231560).

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

170139130640 is a wasteful number, since it uses less digits than its factorization.

170139130640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14273579 (or 14273573 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The spelling of 170139130640 in words is "one hundred seventy billion, one hundred thirty-nine million, one hundred thirty thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 149 298 596 745 1192 1490 2384 2980 5960 11920 14273417 28546834 57093668 71367085 114187336 142734170 228374672 285468340 570936680 1141873360 2126739133 4253478266 8506956532 10633695665 17013913064 21267391330 34027826128 42534782660 85069565320 170139130640