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68823550 = 2521376471
BaseRepresentation
bin1000001101000…
…10100111111110
311210111121011101
410012202213332
5120104323200
610455043314
71463663515
oct406424776
9153447141
1068823550
1135938174
121b07053a
13113491c3
1491d767c
15609726a
hex41a29fe

68823550 has 12 divisors (see below), whose sum is σ = 128011896. Its totient is φ = 27529400.

The previous prime is 68823541. The next prime is 68823563. The reversal of 68823550 is 5532886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 688186 + ... + 688285.

It is an arithmetic number, because the mean of its divisors is an integer number (10667658).

Almost surely, 268823550 is an apocalyptic number.

68823550 is a deficient number, since it is larger than the sum of its proper divisors (59188346).

68823550 is a wasteful number, since it uses less digits than its factorization.

68823550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376483 (or 1376478 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 68823550 is about 8295.9960221784. The cubic root of 68823550 is about 409.8066707009.

The spelling of 68823550 in words is "sixty-eight million, eight hundred twenty-three thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 1376471 2752942 6882355 13764710 34411775 68823550