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1920148 = 222916553
BaseRepresentation
bin111010100110010010100
310121112221121
413110302110
5442421043
6105053324
722215046
oct7246224
93545847
101920148
1110a16aa
12787244
13522ca9
1437da96
1527dded
hex1d4c94

1920148 has 12 divisors (see below), whose sum is σ = 3476340. Its totient is φ = 926912.

The previous prime is 1920143. The next prime is 1920161. The reversal of 1920148 is 8410291.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1507984 + 412164 = 1228^2 + 642^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8161 + ... + 8392.

It is an arithmetic number, because the mean of its divisors is an integer number (289695).

21920148 is an apocalyptic number.

It is an amenable number.

1920148 is a deficient number, since it is larger than the sum of its proper divisors (1556192).

1920148 is a wasteful number, since it uses less digits than its factorization.

1920148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16586 (or 16584 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1920148 is about 1385.6940499259. The cubic root of 1920148 is about 124.2924937006.

The spelling of 1920148 in words is "one million, nine hundred twenty thousand, one hundred forty-eight".

Divisors: 1 2 4 29 58 116 16553 33106 66212 480037 960074 1920148