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71045948 = 2241433207
BaseRepresentation
bin1000011110000…
…01001100111100
311221200111201102
410033001030330
5121141432243
611014432232
71521611021
oct417011474
9157614642
1071045948
1137115966
121b962678
131194692c
149615548
1563859b8
hex43c133c

71045948 has 12 divisors (see below), whose sum is σ = 127363152. Its totient is φ = 34656480.

The previous prime is 71045927. The next prime is 71045963. The reversal of 71045948 is 84954017.

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, 216440 + ... + 216767.

It is an arithmetic number, because the mean of its divisors is an integer number (10613596).

Almost surely, 271045948 is an apocalyptic number.

It is an amenable number.

71045948 is a deficient number, since it is larger than the sum of its proper divisors (56317204).

71045948 is a wasteful number, since it uses less digits than its factorization.

71045948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433252 (or 433250 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 71045948 is about 8428.8758443816. The cubic root of 71045948 is about 414.1710807008.

The spelling of 71045948 in words is "seventy-one million, forty-five thousand, nine hundred forty-eight".

Divisors: 1 2 4 41 82 164 433207 866414 1732828 17761487 35522974 71045948