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83768448 = 273312227
BaseRepresentation
bin1001111111000…
…11010010000000
312211121212201010
410333203102000
5132421042243
612151240520
72035006611
oct477432200
9184555633
1083768448
1143315525
1224079140
131447c73a
14b1a7c08
15754a433
hex4fe3480

83768448 has 96 divisors (see below), whose sum is σ = 230932080. Its totient is φ = 26903040.

The previous prime is 83768441. The next prime is 83768527. The reversal of 83768448 is 84486738.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 83768397 and 83768406.

It is not an unprimeable number, because it can be changed into a prime (83768441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 368911 + ... + 369137.

Almost surely, 283768448 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 83768448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115466040).

83768448 is an abundant number, since it is smaller than the sum of its proper divisors (147163632).

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

83768448 is a wasteful number, since it uses less digits than its factorization.

83768448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 263 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 83768448 is about 9152.5104752740. The cubic root of 83768448 is about 437.5491284150.

The spelling of 83768448 in words is "eighty-three million, seven hundred sixty-eight thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 31 32 48 62 64 93 96 124 128 186 192 227 248 372 384 454 496 681 744 908 961 992 1362 1488 1816 1922 1984 2724 2883 2976 3632 3844 3968 5448 5766 5952 7037 7264 7688 10896 11532 11904 14074 14528 15376 21111 21792 23064 28148 29056 30752 42222 43584 46128 56296 61504 84444 87168 92256 112592 123008 168888 184512 218147 225184 337776 369024 436294 450368 654441 675552 872588 900736 1308882 1351104 1745176 2617764 2702208 3490352 5235528 6980704 10471056 13961408 20942112 27922816 41884224 83768448