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71137190 = 257113719
BaseRepresentation
bin1000011110101…
…11011110100110
311221212010212202
410033113132212
5121202342230
611020414502
71522441025
oct417273646
9157763782
1071137190
1137178473
121b9a7432
1311979317
14963a8bc
1563a2a45
hex43d77a6

71137190 has 8 divisors (see below), whose sum is σ = 128046960. Its totient is φ = 28454872.

The previous prime is 71137189. The next prime is 71137217. The reversal of 71137190 is 9173117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×711371902 = 10120999602192200, which contains 22 as substring.

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, 3556850 + ... + 3556869.

It is an arithmetic number, because the mean of its divisors is an integer number (16005870).

Almost surely, 271137190 is an apocalyptic number.

71137190 is a deficient number, since it is larger than the sum of its proper divisors (56909770).

71137190 is a wasteful number, since it uses less digits than its factorization.

71137190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7113726.

The product of its (nonzero) digits is 1323, while the sum is 29.

The square root of 71137190 is about 8434.2865732675. The cubic root of 71137190 is about 414.3483070026.

The spelling of 71137190 in words is "seventy-one million, one hundred thirty-seven thousand, one hundred ninety".

Divisors: 1 2 5 10 7113719 14227438 35568595 71137190