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688034355 = 3545868957
BaseRepresentation
bin101001000000101…
…001001000110011
31202221122202200220
4221000221020303
52402114044410
6152134544123
723023124031
oct5100511063
91687582626
10688034355
11323417438
12172508043
13ac70cc28
1467541551
154060c070
hex29029233

688034355 has 8 divisors (see below), whose sum is σ = 1100854992. Its totient is φ = 366951648.

The previous prime is 688034329. The next prime is 688034359. The reversal of 688034355 is 553430886.

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

It is not a de Polignac number, because 688034355 - 210 = 688033331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (688034359) 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, 22934464 + ... + 22934493.

It is an arithmetic number, because the mean of its divisors is an integer number (137606874).

Almost surely, 2688034355 is an apocalyptic number.

688034355 is a deficient number, since it is larger than the sum of its proper divisors (412820637).

688034355 is a wasteful number, since it uses less digits than its factorization.

688034355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45868965.

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 688034355 is about 26230.4089750808. The cubic root of 688034355 is about 882.8156863466.

The spelling of 688034355 in words is "six hundred eighty-eight million, thirty-four thousand, three hundred fifty-five".

Divisors: 1 3 5 15 45868957 137606871 229344785 688034355