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20210122141 = 111996699149
BaseRepresentation
bin10010110100100111…
…011111110110011101
31221011110220120122021
4102310213133312131
5312342242402031
613141233020141
71313553126616
oct226447376635
957143816567
1020210122141
1186310a5990
123b003b4651
131ba1097271
14d9a180c0d
157d4424511
hex4b49dfd9d

20210122141 has 8 divisors (see below), whose sum is σ = 23207796000. Its totient is φ = 17405846640.

The previous prime is 20210122139. The next prime is 20210122157. The reversal of 20210122141 is 14122101202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20210122141 - 21 = 20210122139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210122111) 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, 48349366 + ... + 48349783.

It is an arithmetic number, because the mean of its divisors is an integer number (2900974500).

Almost surely, 220210122141 is an apocalyptic number.

It is an amenable number.

20210122141 is a deficient number, since it is larger than the sum of its proper divisors (2997673859).

20210122141 is a wasteful number, since it uses less digits than its factorization.

20210122141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96699179.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20210122141 its reverse (14122101202), we get a palindrome (34332223343).

The spelling of 20210122141 in words is "twenty billion, two hundred ten million, one hundred twenty-two thousand, one hundred forty-one".

Divisors: 1 11 19 209 96699149 1063690639 1837283831 20210122141