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1021000141 = 7827176369
BaseRepresentation
bin111100110110110…
…011100111001101
32122011012011220001
4330312303213031
54042334001031
6245151324301
734205233540
oct7466634715
92564164801
101021000141
11484367577
12245b20691
131336b08c5
1499856857
155e97d861
hex3cdb39cd

1021000141 has 8 divisors (see below), whose sum is σ = 1168274880. Its totient is φ = 874079808.

The previous prime is 1021000139. The next prime is 1021000157. The reversal of 1021000141 is 1410001201.

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

It is not a de Polignac number, because 1021000141 - 21 = 1021000139 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 (1021000121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 82396 + ... + 93973.

It is an arithmetic number, because the mean of its divisors is an integer number (146034360).

Almost surely, 21021000141 is an apocalyptic number.

It is an amenable number.

1021000141 is a deficient number, since it is larger than the sum of its proper divisors (147274739).

1021000141 is an equidigital number, since it uses as much as digits as its factorization.

1021000141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177203.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1021000141 is about 31953.0928237002. The cubic root of 1021000141 is about 1006.9516101379.

Adding to 1021000141 its reverse (1410001201), we get a palindrome (2431001342).

The spelling of 1021000141 in words is "one billion, twenty-one million, one hundred forty-one", and thus it is an aban number.

Divisors: 1 7 827 5789 176369 1234583 145857163 1021000141