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68850620 = 22528112251
BaseRepresentation
bin1000001101010…
…01001110111100
311210112222021222
410012221032330
5120111204440
610455412512
71464135446
oct406511674
9153488258
1068850620
1135956543
121b084138
1311358617
149203496
1560a02b5
hex41a93bc

68850620 has 24 divisors (see below), whose sum is σ = 145112688. Its totient is φ = 27440000.

The previous prime is 68850577. The next prime is 68850631. The reversal of 68850620 is 2605886.

It is a congruent number.

It is an unprimeable number.

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, 506 + ... + 11745.

It is an arithmetic number, because the mean of its divisors is an integer number (6046362).

Almost surely, 268850620 is an apocalyptic number.

It is an amenable number.

68850620 is an abundant number, since it is smaller than the sum of its proper divisors (76262068).

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

68850620 is a wasteful number, since it uses less digits than its factorization.

68850620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12541 (or 12539 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 68850620 is about 8297.6273717250. The cubic root of 68850620 is about 409.8603926825.

The spelling of 68850620 in words is "sixty-eight million, eight hundred fifty thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 281 562 1124 1405 2810 5620 12251 24502 49004 61255 122510 245020 3442531 6885062 13770124 17212655 34425310 68850620