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689472000000 = 2123456719
BaseRepresentation
bin10100000100001111011…
…10111101000000000000
32102220122111012120210000
422002013232331000000
542244014313000000
61244423345440000
7100545521205660
oct12020756750000
92386574176700
10689472000000
11246448a73453
12b175a940000
135002b272b44
1425528dbc1a0
1512e04ba0000
hexa087bbd000

689472000000 has 1820 divisors, whose sum is σ = 3097182230560. Its totient is φ = 149299200000.

The previous prime is 689471999947. The next prime is 689472000083. The reversal of 689472000000 is 274986.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 139 ways as a sum of consecutive naturals, for example, 36287999991 + ... + 36288000009.

Almost surely, 2689472000000 is an apocalyptic number.

689472000000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689472000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1548591115280).

689472000000 is an abundant number, since it is smaller than the sum of its proper divisors (2407710230560).

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

689472000000 is an frugal number, since it uses more digits than its factorization.

689472000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

Adding to 689472000000 its reverse (274986), we get a palindrome (689472274986).

The spelling of 689472000000 in words is "six hundred eighty-nine billion, four hundred seventy-two million", and thus it is an aban number.