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3800745 = 325137389
BaseRepresentation
bin1110011111111010101001
321011002122100
432133322221
51433110440
6213244013
744206614
oct16377251
97132570
103800745
112166613
121333609
13a30c80
1470d17b
15501230
hex39fea9

3800745 has 48 divisors (see below), whose sum is σ = 7272720. Its totient is φ = 1824768.

The previous prime is 3800737. The next prime is 3800761. The reversal of 3800745 is 5470083.

It can be written as a sum of positive squares in 8 ways, for example, as 571536 + 3229209 = 756^2 + 1797^2 .

It is not a de Polignac number, because 3800745 - 23 = 3800737 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42661 + ... + 42749.

It is an arithmetic number, because the mean of its divisors is an integer number (151515).

Almost surely, 23800745 is an apocalyptic number.

It is an amenable number.

3800745 is a deficient number, since it is larger than the sum of its proper divisors (3471975).

3800745 is a wasteful number, since it uses less digits than its factorization.

3800745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 3800745 is about 1949.5499480649. The cubic root of 3800745 is about 156.0592723484.

The spelling of 3800745 in words is "three million, eight hundred thousand, seven hundred forty-five".

Divisors: 1 3 5 9 13 15 39 45 65 73 89 117 195 219 267 365 445 585 657 801 949 1095 1157 1335 2847 3285 3471 4005 4745 5785 6497 8541 10413 14235 17355 19491 32485 42705 52065 58473 84461 97455 253383 292365 422305 760149 1266915 3800745