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71068988 = 22233124919
BaseRepresentation
bin1000011110001…
…10110100111100
311221201200022202
410033012310330
5121143201423
611015131032
71522035134
oct417066474
9157650282
1071068988
1137131201
121b973a78
1311954273
14961dac4
15638c728
hex43c6d3c

71068988 has 24 divisors (see below), whose sum is σ = 133969920. Its totient is φ = 32891760.

The previous prime is 71068967. The next prime is 71068997. The reversal of 71068988 is 88986017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9608 + ... + 15311.

It is an arithmetic number, because the mean of its divisors is an integer number (5582080).

Almost surely, 271068988 is an apocalyptic number.

It is an amenable number.

71068988 is a deficient number, since it is larger than the sum of its proper divisors (62900932).

71068988 is a wasteful number, since it uses less digits than its factorization.

71068988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24977 (or 24975 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 71068988 is about 8430.2424638915. The cubic root of 71068988 is about 414.2158473653.

The spelling of 71068988 in words is "seventy-one million, sixty-eight thousand, nine hundred eighty-eight".

Divisors: 1 2 4 23 31 46 62 92 124 713 1426 2852 24919 49838 99676 573137 772489 1146274 1544978 2292548 3089956 17767247 35534494 71068988