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71940282 = 23115310399
BaseRepresentation
bin1000100100110…
…11100010111010
312000100221111220
410102123202322
5121404042112
611045532510
71532324301
oct422334272
9160327456
1071940282
1137676887
1220114136
1311b9aa1b
1497a9438
1564b098c
hex449b8ba

71940282 has 16 divisors (see below), whose sum is σ = 144019200. Its totient is φ = 23956992.

The previous prime is 71940269. The next prime is 71940283. The reversal of 71940282 is 28204917.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71940283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1719 + ... + 12117.

It is an arithmetic number, because the mean of its divisors is an integer number (9001200).

Almost surely, 271940282 is an apocalyptic number.

71940282 is an abundant number, since it is smaller than the sum of its proper divisors (72078918).

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

71940282 is a wasteful number, since it uses less digits than its factorization.

71940282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11557.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 71940282 is about 8481.7617273772. The cubic root of 71940282 is about 415.9017157173.

The spelling of 71940282 in words is "seventy-one million, nine hundred forty thousand, two hundred eighty-two".

Divisors: 1 2 3 6 1153 2306 3459 6918 10399 20798 31197 62394 11990047 23980094 35970141 71940282