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71057276 = 2217764319
BaseRepresentation
bin1000011110000…
…11111101111100
311221201002020222
410033003331330
5121142313101
611015000512
71521656033
oct417037574
9157632228
1071057276
1137123424
121b969138
131194bb34
14961971a
15638901b
hex43c3f7c

71057276 has 6 divisors (see below), whose sum is σ = 124350240. Its totient is φ = 35528636.

The previous prime is 71057269. The next prime is 71057293. The reversal of 71057276 is 67275017.

It is a super-3 number, since 3×710572763 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8882156 + ... + 8882163.

It is an arithmetic number, because the mean of its divisors is an integer number (20725040).

Almost surely, 271057276 is an apocalyptic number.

It is an amenable number.

71057276 is a deficient number, since it is larger than the sum of its proper divisors (53292964).

71057276 is a wasteful number, since it uses less digits than its factorization.

71057276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17764323 (or 17764321 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 35.

The square root of 71057276 is about 8429.5477933279. The cubic root of 71057276 is about 414.1930921868.

The spelling of 71057276 in words is "seventy-one million, fifty-seven thousand, two hundred seventy-six".

Divisors: 1 2 4 17764319 35528638 71057276