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690199488 = 26331123301
BaseRepresentation
bin101001001000111…
…001101111000000
31210002201202201000
4221020321233000
52403142340423
6152253212000
723050412256
oct5110715700
91702652630
10690199488
11324666100
12173191000
13accba584
14679465d6
15408d8843
hex29239bc0

690199488 has 168 divisors, whose sum is σ = 2230963280. Its totient is φ = 209088000.

The previous prime is 690199487. The next prime is 690199513. The reversal of 690199488 is 884991096.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690199481) 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 23 ways as a sum of consecutive naturals, for example, 207438 + ... + 210738.

Almost surely, 2690199488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690199488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1115481640).

690199488 is an abundant number, since it is smaller than the sum of its proper divisors (1540763792).

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

690199488 is a wasteful number, since it uses less digits than its factorization.

690199488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344 (or 3317 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 690199488 is about 26271.6479878975. The cubic root of 690199488 is about 883.7407428207.

The spelling of 690199488 in words is "six hundred ninety million, one hundred ninety-nine thousand, four hundred eighty-eight".