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71429474 = 2191879723
BaseRepresentation
bin1000100000111…
…10110101100010
311222101222211002
410100132311202
5121241220344
611030552002
71525066124
oct420366542
9158358732
1071429474
1137358026
121bb08602
1311a4c37c
1496b5214
15640e44e
hex441ed62

71429474 has 8 divisors (see below), whose sum is σ = 112783440. Its totient is φ = 33834996.

The previous prime is 71429443. The next prime is 71429489. The reversal of 71429474 is 47492417.

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

It is a super-3 number, since 3×714294743 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1879723 = 71429474 / (7 + 1 + 4 + 2 + 9 + 4 + 7 + 4).

It is a Curzon 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, 939824 + ... + 939899.

It is an arithmetic number, because the mean of its divisors is an integer number (14097930).

Almost surely, 271429474 is an apocalyptic number.

71429474 is a deficient number, since it is larger than the sum of its proper divisors (41353966).

71429474 is a wasteful number, since it uses less digits than its factorization.

71429474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879744.

The product of its digits is 56448, while the sum is 38.

The square root of 71429474 is about 8451.5959439623. The cubic root of 71429474 is about 414.9150142904.

The spelling of 71429474 in words is "seventy-one million, four hundred twenty-nine thousand, four hundred seventy-four".

Divisors: 1 2 19 38 1879723 3759446 35714737 71429474