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1955133 = 321091993
BaseRepresentation
bin111011101010100111101
310200022221100
413131110331
51000031013
6105523313
722422045
oct7352475
93608840
101955133
111115a14
127a3539
13535bab
1438c725
15289473
hex1dd53d

1955133 has 12 divisors (see below), whose sum is σ = 2851420. Its totient is φ = 1290816.

The previous prime is 1955131. The next prime is 1955137. The reversal of 1955133 is 3315591.

It can be written as a sum of positive squares in 2 ways, for example, as 1397124 + 558009 = 1182^2 + 747^2 .

It is not a de Polignac number, because 1955133 - 21 = 1955131 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1955097 and 1955106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955131) 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, 16 + ... + 1977.

21955133 is an apocalyptic number.

It is an amenable number.

1955133 is a deficient number, since it is larger than the sum of its proper divisors (896287).

1955133 is a wasteful number, since it uses less digits than its factorization.

1955133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108 (or 2105 counting only the distinct ones).

The product of its digits is 2025, while the sum is 27.

The square root of 1955133 is about 1398.2607053050. The cubic root of 1955133 is about 125.0428226614.

The spelling of 1955133 in words is "one million, nine hundred fifty-five thousand, one hundred thirty-three".

Divisors: 1 3 9 109 327 981 1993 5979 17937 217237 651711 1955133