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71192004 = 223134310613
BaseRepresentation
bin1000011111001…
…00110111000100
311221221221001220
410033210313010
5121211121004
611021520340
71523056602
oct417446704
9157857056
1071192004
1137205674
121ba130b0
1311998260
149652872
1563b3dd9
hex43e4dc4

71192004 has 48 divisors (see below), whose sum is σ = 183070272. Its totient is φ = 21393792.

The previous prime is 71191999. The next prime is 71192029. The reversal of 71192004 is 40029117.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1402 + ... + 12014.

It is an arithmetic number, because the mean of its divisors is an integer number (3813964).

Almost surely, 271192004 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 71192004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91535136).

71192004 is an abundant number, since it is smaller than the sum of its proper divisors (111878268).

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

71192004 is a wasteful number, since it uses less digits than its factorization.

71192004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10676 (or 10674 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 71192004 is about 8437.5354221479. The cubic root of 71192004 is about 414.4547035634.

The spelling of 71192004 in words is "seventy-one million, one hundred ninety-two thousand, four".

Divisors: 1 2 3 4 6 12 13 26 39 43 52 78 86 129 156 172 258 516 559 1118 1677 2236 3354 6708 10613 21226 31839 42452 63678 127356 137969 275938 413907 456359 551876 827814 912718 1369077 1655628 1825436 2738154 5476308 5932667 11865334 17798001 23730668 35596002 71192004