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68501629 = 714876581
BaseRepresentation
bin1000001010101…
…00000001111101
311202220020120101
410011110001331
5120014023004
610444121101
71461153130
oct405240175
9152806511
1068501629
1135738319
121ab36191
1311265811
149152217
156031ba4
hex415407d

68501629 has 8 divisors (see below), whose sum is σ = 78352128. Its totient is φ = 58667280.

The previous prime is 68501621. The next prime is 68501639. The reversal of 68501629 is 92610586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68501629 - 23 = 68501621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68501621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7119 + ... + 13699.

It is an arithmetic number, because the mean of its divisors is an integer number (9794016).

Almost surely, 268501629 is an apocalyptic number.

It is an amenable number.

68501629 is a deficient number, since it is larger than the sum of its proper divisors (9850499).

68501629 is a wasteful number, since it uses less digits than its factorization.

68501629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8075.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 68501629 is about 8276.5710895274. The cubic root of 68501629 is about 409.1667172628.

The spelling of 68501629 in words is "sixty-eight million, five hundred one thousand, six hundred twenty-nine".

Divisors: 1 7 1487 6581 10409 46067 9785947 68501629