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688101485 = 51075032557
BaseRepresentation
bin101001000000111…
…001100001101101
31202221210011210012
4221000321201231
52402123221420
6152140223005
723023523531
oct5100714155
91687704705
10688101485
11323462915
1217253aa65
13ac734656
146755bbc1
1540621dc5
hex2903986d

688101485 has 16 divisors (see below), whose sum is σ = 835422336. Its totient is φ = 544039488.

The previous prime is 688101467. The next prime is 688101487. The reversal of 688101485 is 584101886.

It is a cyclic number.

It is not a de Polignac number, because 688101485 - 222 = 683907181 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 (688101487) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 267827 + ... + 270383.

It is an arithmetic number, because the mean of its divisors is an integer number (52213896).

Almost surely, 2688101485 is an apocalyptic number.

It is an amenable number.

688101485 is a deficient number, since it is larger than the sum of its proper divisors (147320851).

688101485 is a wasteful number, since it uses less digits than its factorization.

688101485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172.

The product of its (nonzero) digits is 61440, while the sum is 41.

The square root of 688101485 is about 26231.6885655499. The cubic root of 688101485 is about 882.8443968750.

The spelling of 688101485 in words is "six hundred eighty-eight million, one hundred one thousand, four hundred eighty-five".

Divisors: 1 5 107 503 535 2515 2557 12785 53821 269105 273599 1286171 1367995 6430855 137620297 688101485