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940820465 = 51322938393
BaseRepresentation
bin111000000100111…
…100011111110001
32102120022122001102
4320010330133301
53411322223330
6233205014145
732212561544
oct7004743761
92376278042
10940820465
11443083382
122230b4355
1311cbb9800
148cd4485b
15578e1945
hex3813c7f1

940820465 has 24 divisors (see below), whose sum is σ = 1264698360. Its totient is φ = 670785024.

The previous prime is 940820417. The next prime is 940820467. The reversal of 940820465 is 564028049.

940820465 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 611869696 + 328950769 = 24736^2 + 18137^2 .

It is not a de Polignac number, because 940820465 - 210 = 940819441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (940820467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5309 + ... + 43701.

It is an arithmetic number, because the mean of its divisors is an integer number (52695765).

Almost surely, 2940820465 is an apocalyptic number.

It is an amenable number.

940820465 is a deficient number, since it is larger than the sum of its proper divisors (323877895).

940820465 is a wasteful number, since it uses less digits than its factorization.

940820465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38453 (or 38440 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 940820465 is about 30672.7968238959. The cubic root of 940820465 is about 979.8710315499.

The spelling of 940820465 in words is "nine hundred forty million, eight hundred twenty thousand, four hundred sixty-five".

Divisors: 1 5 13 29 65 145 169 377 845 1885 4901 24505 38393 191965 499109 1113397 2495545 5566985 6488417 14474161 32442085 72370805 188164093 940820465