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101205616240 = 2458353151451
BaseRepresentation
bin101111001000001010…
…0110010011001110000
3100200020012012222211001
41132100110302121300
53124232114204430
6114254311331344
710211653354441
oct1362024623160
9320205188731
10101205616240
1139a14a28463
1217745680b54
13970b51c331
144c812132c8
152974ed43ca
hex1790532670

101205616240 has 40 divisors (see below), whose sum is σ = 235332781488. Its totient is φ = 40477132800.

The previous prime is 101205616229. The next prime is 101205616241. The reversal of 101205616240 is 42616502101.

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

It is a junction number, because it is equal to n+sod(n) for n = 101205616199 and 101205616208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101205616241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592515 + ... + 743965.

Almost surely, 2101205616240 is an apocalyptic number.

101205616240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101205616240 is an abundant number, since it is smaller than the sum of its proper divisors (134127165248).

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

101205616240 is a wasteful number, since it uses less digits than its factorization.

101205616240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159817 (or 159811 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 101205616240 in words is "one hundred one billion, two hundred five million, six hundred sixteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 8353 16706 33412 41765 66824 83530 133648 151451 167060 302902 334120 605804 668240 757255 1211608 1514510 2423216 3029020 6058040 12116080 1265070203 2530140406 5060280812 6325351015 10120561624 12650702030 20241123248 25301404060 50602808120 101205616240