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1969141 = 19611699
BaseRepresentation
bin111100000101111110101
310201001011011
413200233311
51001003031
6110112221
722510636
oct7405765
93631134
101969141
111125499
127ab671
1353c395
1439388d
1528d6b1
hex1e0bf5

1969141 has 8 divisors (see below), whose sum is σ = 2108000. Its totient is φ = 1833840.

The previous prime is 1969111. The next prime is 1969147. The reversal of 1969141 is 1419691.

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 1969141 - 217 = 1838069 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 (1969147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310 + ... + 2008.

It is an arithmetic number, because the mean of its divisors is an integer number (263500).

21969141 is an apocalyptic number.

1969141 is the 888-th centered pentagonal number.

It is an amenable number.

1969141 is a deficient number, since it is larger than the sum of its proper divisors (138859).

1969141 is a wasteful number, since it uses less digits than its factorization.

1969141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779.

The product of its digits is 1944, while the sum is 31.

The square root of 1969141 is about 1403.2608453171. The cubic root of 1969141 is about 125.3407449656.

The spelling of 1969141 in words is "one million, nine hundred sixty-nine thousand, one hundred forty-one".

Divisors: 1 19 61 1159 1699 32281 103639 1969141