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379529649 = 3217321409
BaseRepresentation
bin10110100111110…
…010100110110001
3222110011002210200
4112213302212301
51234124422044
6101354345413
712255643302
oct2647624661
9873132720
10379529649
11185264274
12a712b269
1360825075
14385967a9
15234bd369
hex169f29b1

379529649 has 18 divisors (see below), whose sum is σ = 551787990. Its totient is φ = 251378688.

The previous prime is 379529603. The next prime is 379529651. The reversal of 379529649 is 946925973.

379529649 is a `hidden beast` number, since 3 + 79 + 529 + 6 + 49 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 99201600 + 280328049 = 9960^2 + 16743^2 .

It is not a de Polignac number, because 379529649 - 215 = 379496881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 379529595 and 379529604.

It is not an unprimeable number, because it can be changed into a prime (379529659) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 268657 + ... + 270065.

Almost surely, 2379529649 is an apocalyptic number.

It is an amenable number.

379529649 is a deficient number, since it is larger than the sum of its proper divisors (172258341).

379529649 is a wasteful number, since it uses less digits than its factorization.

379529649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761 (or 1585 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 379529649 is about 19481.5207055302. The cubic root of 379529649 is about 724.0166765844.

The spelling of 379529649 in words is "three hundred seventy-nine million, five hundred twenty-nine thousand, six hundred forty-nine".

Divisors: 1 3 9 173 519 1409 1557 4227 12681 29929 89787 243757 269361 731271 2193813 42169961 126509883 379529649