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68477850 = 23252721739
BaseRepresentation
bin1000001010011…
…10001110011010
311202212000221200
410011032032122
5120012242400
610443415030
71461023610
oct405161632
9152760850
1068477850
1135721471
121ab24476
1311257a4c
1491476b0
156029b00
hex414e39a

68477850 has 72 divisors (see below), whose sum is σ = 210269280. Its totient is φ = 15651360.

The previous prime is 68477839. The next prime is 68477863. The reversal of 68477850 is 5877486.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 68477796 and 68477805.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7720 + ... + 14019.

Almost surely, 268477850 is an apocalyptic number.

68477850 is an abundant number, since it is smaller than the sum of its proper divisors (141791430).

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

68477850 is a wasteful number, since it uses less digits than its factorization.

68477850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21764 (or 21756 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 68477850 is about 8275.1344399955. The cubic root of 68477850 is about 409.1193670439.

The spelling of 68477850 in words is "sixty-eight million, four hundred seventy-seven thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 25 30 35 42 45 50 63 70 75 90 105 126 150 175 210 225 315 350 450 525 630 1050 1575 3150 21739 43478 65217 108695 130434 152173 195651 217390 304346 326085 391302 456519 543475 652170 760865 913038 978255 1086950 1369557 1521730 1630425 1956510 2282595 2739114 3260850 3804325 4565190 4891275 6847785 7608650 9782550 11412975 13695570 22825950 34238925 68477850