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1992352141 = 13192424537
BaseRepresentation
bin111011011000000…
…1110000110001101
312010211221222100001
41312300032012031
513040020232031
6525411004301
7100241466553
oct16660160615
95124858301
101992352141
119326a371a
12477299691
132599ca2c0
1414c867bd3
15b9da1861
hex76c0e18d

1992352141 has 12 divisors (see below), whose sum is σ = 2264485692. Its totient is φ = 1742295744.

The previous prime is 1992352127. The next prime is 1992352177. The reversal of 1992352141 is 1412532991.

It can be written as a sum of positive squares in 2 ways, for example, as 1085438916 + 906913225 = 32946^2 + 30115^2 .

It is not a de Polignac number, because 1992352141 - 29 = 1992351629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1992352141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992352181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207576 + ... + 216961.

It is an arithmetic number, because the mean of its divisors is an integer number (188707141).

Almost surely, 21992352141 is an apocalyptic number.

It is an amenable number.

1992352141 is a deficient number, since it is larger than the sum of its proper divisors (272133551).

1992352141 is a wasteful number, since it uses less digits than its factorization.

1992352141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424588 (or 424569 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The square root of 1992352141 is about 44635.7719883951. The cubic root of 1992352141 is about 1258.3130487654.

The spelling of 1992352141 in words is "one billion, nine hundred ninety-two million, three hundred fifty-two thousand, one hundred forty-one".

Divisors: 1 13 19 247 361 4693 424537 5518981 8066203 104860639 153257857 1992352141