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107557215121 = 19103157934807
BaseRepresentation
bin110010000101011101…
…0001101101110010001
3101021121211212122111001
41210022322031232101
53230234121340441
6121224444222001
710525240146436
oct1441272155621
9337554778431
10107557215121
1141684275734
1218a1883a901
13a1b13b0c75
1452c49c7b8d
152be791e731
hex190ae8db91

107557215121 has 16 divisors (see below), whose sum is σ = 114393011200. Its totient is φ = 100840221648.

The previous prime is 107557215107. The next prime is 107557215127. The reversal of 107557215121 is 121512755701.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-107557215121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (107557215127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3072700 + ... + 3107506.

It is an arithmetic number, because the mean of its divisors is an integer number (7149563200).

Almost surely, 2107557215121 is an apocalyptic number.

It is an amenable number.

107557215121 is a deficient number, since it is larger than the sum of its proper divisors (6835796079).

107557215121 is a wasteful number, since it uses less digits than its factorization.

107557215121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36508.

The product of its (nonzero) digits is 24500, while the sum is 37.

The spelling of 107557215121 in words is "one hundred seven billion, five hundred fifty-seven million, two hundred fifteen thousand, one hundred twenty-one".

Divisors: 1 19 103 1579 1957 30001 34807 162637 661333 3090103 3585121 54960253 68117299 1044244807 5660906059 107557215121