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71430612 = 22311541141
BaseRepresentation
bin1000100000111…
…11000111010100
311222102001101020
410100133013110
5121241234422
611031001140
71525102341
oct420370724
9158361336
1071430612
1137358970
121bb091b0
1311a4ca46
1496b57c8
15640e95c
hex441f1d4

71430612 has 24 divisors (see below), whose sum is σ = 181823712. Its totient is φ = 21645600.

The previous prime is 71430607. The next prime is 71430613. The reversal of 71430612 is 21603417.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71430613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270439 + ... + 270702.

It is an arithmetic number, because the mean of its divisors is an integer number (7575988).

Almost surely, 271430612 is an apocalyptic number.

It is an amenable number.

71430612 is an abundant number, since it is smaller than the sum of its proper divisors (110393100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71430612 is a wasteful number, since it uses less digits than its factorization.

71430612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541159 (or 541157 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 71430612 is about 8451.6632682567. The cubic root of 71430612 is about 414.9172177262.

The spelling of 71430612 in words is "seventy-one million, four hundred thirty thousand, six hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 541141 1082282 1623423 2164564 3246846 5952551 6493692 11905102 17857653 23810204 35715306 71430612