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68387448 = 2332849477
BaseRepresentation
bin1000001001110…
…00001001111000
311202200102221110
410010320021320
5120001344243
610441440320
71460166213
oct404701170
9152612843
1068387448
113566a558
121aaa00a0
131122585c
14912277a
15600ce33
hex4138278

68387448 has 16 divisors (see below), whose sum is σ = 170968680. Its totient is φ = 22795808.

The previous prime is 68387401. The next prime is 68387461. The reversal of 68387448 is 84478386.

It is a junction number, because it is equal to n+sod(n) for n = 68387397 and 68387406.

It is a congruent number.

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, 1424715 + ... + 1424762.

Almost surely, 268387448 is an apocalyptic number.

It is an amenable number.

68387448 is an abundant number, since it is smaller than the sum of its proper divisors (102581232).

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

68387448 is a wasteful number, since it uses less digits than its factorization.

68387448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849486 (or 2849482 counting only the distinct ones).

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

The square root of 68387448 is about 8269.6703682795. The cubic root of 68387448 is about 408.9392528586.

The spelling of 68387448 in words is "sixty-eight million, three hundred eighty-seven thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 2849477 5698954 8548431 11397908 17096862 22795816 34193724 68387448