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69965060040 = 23335732693299
BaseRepresentation
bin100000100101000111…
…1100001011111001000
320200120222121022021000
41001022033201133020
52121242023410130
652050322015000
75024541124611
oct1011217413710
9220528538230
1069965060040
11277434a8177
12116871a7460
1367a0133015
14355a11cc08
151c4750d260
hex104a3e17c8

69965060040 has 256 divisors, whose sum is σ = 237362400000. Its totient is φ = 18327803904.

The previous prime is 69965059993. The next prime is 69965060071. The reversal of 69965060040 is 4006056996.

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 63 ways as a sum of consecutive naturals, for example, 21206311 + ... + 21209609.

It is an arithmetic number, because the mean of its divisors is an integer number (927196875).

Almost surely, 269965060040 is an apocalyptic number.

69965060040 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 69965060040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118681200000).

69965060040 is an abundant number, since it is smaller than the sum of its proper divisors (167397339960).

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

69965060040 is a wasteful number, since it uses less digits than its factorization.

69965060040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661 (or 3651 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 69965060040 in words is "sixty-nine billion, nine hundred sixty-five million, sixty thousand, forty".