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71378802 = 232112931401
BaseRepresentation
bin1000100000100…
…10011101110010
311222022102022100
410100102131302
5121233110202
611025521230
71524465315
oct420223562
9158272270
1071378802
1137322a50
121baa3216
1311a322a1
1496a097c
1563ee41c
hex4412772

71378802 has 96 divisors (see below), whose sum is σ = 180610560. Its totient is φ = 20160000.

The previous prime is 71378789. The next prime is 71378803. The reversal of 71378802 is 20887317.

It is not an unprimeable number, because it can be changed into a prime (71378803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177802 + ... + 178202.

It is an arithmetic number, because the mean of its divisors is an integer number (1881360).

Almost surely, 271378802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71378802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90305280).

71378802 is an abundant number, since it is smaller than the sum of its proper divisors (109231758).

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

71378802 is a wasteful number, since it uses less digits than its factorization.

71378802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 71378802 is about 8448.5976351108. The cubic root of 71378802 is about 414.8168776437.

It can be divided in two parts, 71 and 378802, that added together give a palindrome (378873).

The spelling of 71378802 in words is "seventy-one million, three hundred seventy-eight thousand, eight hundred two".

Divisors: 1 2 3 6 9 11 18 22 29 31 33 58 62 66 87 93 99 174 186 198 261 279 319 341 401 522 558 638 682 802 899 957 1023 1203 1798 1914 2046 2406 2697 2871 3069 3609 4411 5394 5742 6138 7218 8091 8822 9889 11629 12431 13233 16182 19778 23258 24862 26466 29667 34887 37293 39699 59334 69774 74586 79398 89001 104661 111879 127919 136741 178002 209322 223758 255838 273482 360499 383757 410223 720998 767514 820446 1081497 1151271 1230669 2162994 2302542 2461338 3244491 3965489 6488982 7930978 11896467 23792934 35689401 71378802