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71492933 = 157659691
BaseRepresentation
bin1000100001011…
…10010101000101
311222112012212102
410100232111011
5121300233213
611032201445
71525452131
oct420562505
9158465772
1071492933
11373a0776
121bb39285
1311a72215
1496d03c1
156423158
hex442e545

71492933 has 8 divisors (see below), whose sum is σ = 72161760. Its totient is φ = 70827120.

The previous prime is 71492929. The next prime is 71492959. The reversal of 71492933 is 33929417.

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

It is a cyclic number.

It is not a de Polignac number, because 71492933 - 22 = 71492929 is a prime.

It is a super-2 number, since 2×714929332 = 10222478937884978, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71492903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103118 + ... + 103808.

It is an arithmetic number, because the mean of its divisors is an integer number (9020220).

Almost surely, 271492933 is an apocalyptic number.

It is an amenable number.

71492933 is a deficient number, since it is larger than the sum of its proper divisors (668827).

71492933 is a wasteful number, since it uses less digits than its factorization.

71492933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507.

The product of its digits is 40824, while the sum is 38.

The square root of 71492933 is about 8455.3493718474. The cubic root of 71492933 is about 415.0378501308.

The spelling of 71492933 in words is "seventy-one million, four hundred ninety-two thousand, nine hundred thirty-three".

Divisors: 1 157 659 691 103463 108487 455369 71492933