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69540253380 = 2233513173118797
BaseRepresentation
bin100000011000011101…
…1000000111011000100
320122111101020220002000
41000300323000323010
52114404301102010
651540224545300
75011162254333
oct1006073007304
9218441226060
1069540253380
1127545729694
1211588a82230
136733117530
14351993bd1a
151c200997c0
hex1030ec0ec4

69540253380 has 384 divisors, whose sum is σ = 254666280960. Its totient is φ = 15590154240.

The previous prime is 69540253379. The next prime is 69540253439. The reversal of 69540253380 is 8335204596.

69540253380 is a `hidden beast` number, since 6 + 9 + 540 + 25 + 3 + 3 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3690142 + ... + 3708938.

It is an arithmetic number, because the mean of its divisors is an integer number (663193440).

Almost surely, 269540253380 is an apocalyptic number.

69540253380 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 69540253380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127333140480).

69540253380 is an abundant number, since it is smaller than the sum of its proper divisors (185126027580).

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

69540253380 is a wasteful number, since it uses less digits than its factorization.

69540253380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18876 (or 18868 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 69540253380 in words is "sixty-nine billion, five hundred forty million, two hundred fifty-three thousand, three hundred eighty".