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690238304000 = 285372440203
BaseRepresentation
bin10100000101101010110…
…10001010111100000000
32102222121220010212020122
422002311122022330000
542302102001212000
61245031402155412
7100603514531300
oct12026532127400
92388556125218
10690238304000
11246801589a43
12b19334b2b68
1350120c5866b
142559ca95600
1512e4c0bd085
hexa0b568af00

690238304000 has 216 divisors, whose sum is σ = 2000204217648. Its totient is φ = 236652595200.

The previous prime is 690238303981. The next prime is 690238304017. The reversal of 690238304000 is 403832096.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1347899 + ... + 1788101.

Almost surely, 2690238304000 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 690238304000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000102108824).

690238304000 is an abundant number, since it is smaller than the sum of its proper divisors (1309965913648).

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

690238304000 is an equidigital number, since it uses as much as digits as its factorization.

690238304000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440248 (or 440217 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 690238304000 in words is "six hundred ninety billion, two hundred thirty-eight million, three hundred four thousand".