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78327080448 = 293101504893
BaseRepresentation
bin100100011110010101…
…0000110011000000000
321111011202012221210120
41020330222012120000
52240403213033243
655552153100240
75442006125061
oct1107452063000
9244152187716
1078327080448
113024465a941
121321b6b7680
13750367a6a6
143b10902568
1520866b8c83
hex123ca86600

78327080448 has 80 divisors (see below), whose sum is σ = 210734677296. Its totient is φ = 25850470400.

The previous prime is 78327080441. The next prime is 78327080467. The reversal of 78327080448 is 84408072387.

It is a super-2 number, since 2×783270804482 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78327080448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78327080441) 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, 97311 + ... + 407582.

Almost surely, 278327080448 is an apocalyptic number.

It is an amenable number.

78327080448 is an abundant number, since it is smaller than the sum of its proper divisors (132407596848).

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

78327080448 is a wasteful number, since it uses less digits than its factorization.

78327080448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505015 (or 504999 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 51.

The spelling of 78327080448 in words is "seventy-eight billion, three hundred twenty-seven million, eighty thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 101 128 192 202 256 303 384 404 512 606 768 808 1212 1536 1616 2424 3232 4848 6464 9696 12928 19392 25856 38784 51712 77568 155136 504893 1009786 1514679 2019572 3029358 4039144 6058716 8078288 12117432 16156576 24234864 32313152 48469728 50994193 64626304 96939456 101988386 129252608 152982579 193878912 203976772 258505216 305965158 387757824 407953544 611930316 775515648 815907088 1223860632 1631814176 2447721264 3263628352 4895442528 6527256704 9790885056 13054513408 19581770112 26109026816 39163540224 78327080448