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78296087492 = 22743271239963
BaseRepresentation
bin100100011101011001…
…1110111101111000100
321111002120220100110022
41020322303313233010
52240322244244432
655545124514312
75441151522440
oct1107263675704
9244076810408
1078296087492
1130229111427
121321124b998
1374ca11876c
143b0a755820
152083ae5b12
hex123acf7bc4

78296087492 has 48 divisors (see below), whose sum is σ = 160825792512. Its totient is φ = 32654028960.

The previous prime is 78296087483. The next prime is 78296087503. The reversal of 78296087492 is 29478069287.

It is a super-2 number, since 2×782960874922 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206303 + ... + 446265.

It is an arithmetic number, because the mean of its divisors is an integer number (3350537344).

Almost surely, 278296087492 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 78296087492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80412896256).

78296087492 is an abundant number, since it is smaller than the sum of its proper divisors (82529705020).

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

78296087492 is a wasteful number, since it uses less digits than its factorization.

78296087492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240288 (or 240286 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 62.

The spelling of 78296087492 in words is "seventy-eight billion, two hundred ninety-six million, eighty-seven thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 43 86 172 271 301 542 602 1084 1204 1897 3794 7588 11653 23306 46612 81571 163142 239963 326284 479926 959852 1679741 3359482 6718964 10318409 20636818 41273636 65029973 72228863 130059946 144457726 260119892 288915452 455209811 910419622 1820839244 2796288839 5592577678 11185155356 19574021873 39148043746 78296087492