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71049152 = 266131811
BaseRepresentation
bin1000011110000…
…01111111000000
311221200200010002
410033001333000
5121142033102
611014455132
71521623246
oct417017700
9157620102
1071049152
1137118309
121b9644a8
1311948225
149616796
156386902
hex43c1fc0

71049152 has 28 divisors (see below), whose sum is σ = 141296136. Its totient is φ = 35447040.

The previous prime is 71049149. The next prime is 71049161. The reversal of 71049152 is 25194017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38327 + ... + 40137.

Almost surely, 271049152 is an apocalyptic number.

It is an amenable number.

71049152 is a deficient number, since it is larger than the sum of its proper divisors (70246984).

71049152 is a wasteful number, since it uses less digits than its factorization.

71049152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436 (or 2426 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 71049152 is about 8429.0659031710. The cubic root of 71049152 is about 414.1773066444.

The spelling of 71049152 in words is "seventy-one million, forty-nine thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 613 1226 1811 2452 3622 4904 7244 9808 14488 19616 28976 39232 57952 115904 1110143 2220286 4440572 8881144 17762288 35524576 71049152