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71248968 = 23327373379
BaseRepresentation
bin1000011111100…
…10110001001000
311222001211012200
410033302301020
5121214431333
611023040200
71523414640
oct417626110
9158054180
1071248968
113724444a
121ba40060
13119b816b
149669520
1563c5c13
hex43f2c48

71248968 has 96 divisors (see below), whose sum is σ = 221707200. Its totient is φ = 20248704.

The previous prime is 71248967. The next prime is 71248987. The reversal of 71248968 is 86984217.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (71248967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187803 + ... + 188181.

It is an arithmetic number, because the mean of its divisors is an integer number (2309450).

Almost surely, 271248968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71248968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110853600).

71248968 is an abundant number, since it is smaller than the sum of its proper divisors (150458232).

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

71248968 is a wasteful number, since it uses less digits than its factorization.

71248968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 764 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 71248968 is about 8440.9103774415. The cubic root of 71248968 is about 414.5652155232.

The spelling of 71248968 in words is "seventy-one million, two hundred forty-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 373 379 504 746 758 1119 1137 1492 1516 2238 2274 2611 2653 2984 3032 3357 3411 4476 4548 5222 5306 6714 6822 7833 7959 8952 9096 10444 10612 13428 13644 15666 15918 20888 21224 23499 23877 26856 27288 31332 31836 46998 47754 62664 63672 93996 95508 141367 187992 191016 282734 424101 565468 848202 989569 1130936 1272303 1696404 1979138 2544606 2968707 3392808 3958276 5089212 5937414 7916552 8906121 10178424 11874828 17812242 23749656 35624484 71248968