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1940965928 = 231131170921
BaseRepresentation
bin111001110110000…
…1100101000101000
312000021021021200222
41303230030220220
512433341402203
6520333345212
766045636536
oct16354145050
95007237628
101940965928
11906696480
12462038208
1324c177c65
14145acd156
15b5601038
hex73b0ca28

1940965928 has 32 divisors (see below), whose sum is σ = 3982979520. Its totient is φ = 879408000.

The previous prime is 1940965927. The next prime is 1940965937. The reversal of 1940965928 is 8295690491.

It is a self number, because there is not a number n which added to its sum of digits gives 1940965928.

It is not an unprimeable number, because it can be changed into a prime (1940965921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8093 + ... + 62828.

It is an arithmetic number, because the mean of its divisors is an integer number (124468110).

Almost surely, 21940965928 is an apocalyptic number.

It is an amenable number.

1940965928 is an abundant number, since it is smaller than the sum of its proper divisors (2042013592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1940965928 is a wasteful number, since it uses less digits than its factorization.

1940965928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71249 (or 71245 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 53.

The square root of 1940965928 is about 44056.3948593164. The cubic root of 1940965928 is about 1247.4006631450.

The spelling of 1940965928 in words is "one billion, nine hundred forty million, nine hundred sixty-five thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 11 22 44 88 311 622 1244 2488 3421 6842 13684 27368 70921 141842 283684 567368 780131 1560262 3120524 6241048 22056431 44112862 88225724 176451448 242620741 485241482 970482964 1940965928