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3725733385 = 511229212353
BaseRepresentation
bin1101111000010010…
…0010111000001001
3100121122121212101101
43132010202320021
530112241432020
61413411221401
7161220132313
oct33604427011
910548555341
103725733385
111642096700
1287b8a7861
13474b6388a
14274b5c7b3
1516c14b00a
hexde122e09

3725733385 has 24 divisors (see below), whose sum is σ = 5083754760. Its totient is φ = 2616176640.

The previous prime is 3725733367. The next prime is 3725733391. The reversal of 3725733385 is 5833375273.

It can be written as a sum of positive squares in 4 ways, for example, as 797949504 + 2927783881 = 28248^2 + 54109^2 .

It is not a de Polignac number, because 3725733385 - 27 = 3725733257 is a prime.

It is a super-2 number, since 2×37257333852 = 27762178512207116450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88632 + ... + 123721.

It is an arithmetic number, because the mean of its divisors is an integer number (211823115).

Almost surely, 23725733385 is an apocalyptic number.

It is an amenable number.

3725733385 is a deficient number, since it is larger than the sum of its proper divisors (1358021375).

3725733385 is a wasteful number, since it uses less digits than its factorization.

3725733385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212409 (or 212398 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 46.

The square root of 3725733385 is about 61038.7859069952. The cubic root of 3725733385 is about 1550.2577975645.

The spelling of 3725733385 in words is "three billion, seven hundred twenty-five million, seven hundred thirty-three thousand, three hundred eighty-five".

Divisors: 1 5 11 29 55 121 145 319 605 1595 3509 17545 212353 1061765 2335883 6158237 11679415 25694713 30791185 67740607 128473565 338703035 745146677 3725733385