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71377352 = 232921032
BaseRepresentation
bin1000100000100…
…10000111001000
311222022100022122
410100102013020
5121233033402
611025510412
71524461144
oct420220710
9158270278
1071377352
1137321952
121baa2408
1311a31727
1496a0224
1563edca2
hex44121c8

71377352 has 36 divisors (see below), whose sum is σ = 139965345. Its totient is φ = 34123488.

The previous prime is 71377343. The next prime is 71377363. The reversal of 71377352 is 25377317.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 71334916 + 42436 = 8446^2 + 206^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=5974.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 692933 + ... + 693035.

Almost surely, 271377352 is an apocalyptic number.

It is an amenable number.

71377352 is a deficient number, since it is larger than the sum of its proper divisors (68587993).

71377352 is a wasteful number, since it uses less digits than its factorization.

71377352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 134 counting only the distinct ones).

The product of its digits is 30870, while the sum is 35.

The square root of 71377352 is about 8448.5118216169. The cubic root of 71377352 is about 414.8140687400.

Subtracting from 71377352 its sum of digits (35), we obtain a palindrome (71377317).

The spelling of 71377352 in words is "seventy-one million, three hundred seventy-seven thousand, three hundred fifty-two".

Divisors: 1 2 4 8 29 58 103 116 206 232 412 824 841 1682 2987 3364 5974 6728 10609 11948 21218 23896 42436 84872 86623 173246 307661 346492 615322 692984 1230644 2461288 8922169 17844338 35688676 71377352