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80400888448 = 273371863893
BaseRepresentation
bin100101011100001000…
…1000011001010000000
321200112021110022120021
41022320101003022000
52304130111412243
6100534034023224
75544260163406
oct1127021031200
9250467408507
1080400888448
1131109229551
12136ba117b14
1377741c790a
143c6a0d1476
1521587aa6ed
hex12b8443280

80400888448 has 32 divisors (see below), whose sum is σ = 160649023860. Its totient is φ = 40081133568.

The previous prime is 80400888437. The next prime is 80400888461. The reversal of 80400888448 is 84488800408.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76799928384 + 3600960064 = 277128^2 + 60008^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 80400888395 and 80400888404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888811 + ... + 975082.

Almost surely, 280400888448 is an apocalyptic number.

It is an amenable number.

80400888448 is a deficient number, since it is larger than the sum of its proper divisors (80248135412).

80400888448 is a wasteful number, since it uses less digits than its factorization.

80400888448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864244 (or 1864232 counting only the distinct ones).

The product of its (nonzero) digits is 2097152, while the sum is 52.

The spelling of 80400888448 in words is "eighty billion, four hundred million, eight hundred eighty-eight thousand, four hundred forty-eight".

Divisors: 1 2 4 8 16 32 64 128 337 674 1348 2696 5392 10784 21568 43136 1863893 3727786 7455572 14911144 29822288 59644576 119289152 238578304 628131941 1256263882 2512527764 5025055528 10050111056 20100222112 40200444224 80400888448