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69023318940 = 2235519773967
BaseRepresentation
bin100000001001000011…
…1000100001110011100
320121011100112220100000
41000102013010032130
52112324432201230
651413041134300
74662314350002
oct1002207041634
9217140486300
1069023318940
11272aa956144
121146392a390
13667ccb3474
1434ab018a72
151bde9d8b60
hex10121c439c

69023318940 has 288 divisors, whose sum is σ = 229085176320. Its totient is φ = 17396902656.

The previous prime is 69023318911. The next prime is 69023318953. The reversal of 69023318940 is 4981332096.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 71378337 + ... + 71379303.

It is an arithmetic number, because the mean of its divisors is an integer number (795434640).

Almost surely, 269023318940 is an apocalyptic number.

69023318940 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 69023318940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114542588160).

69023318940 is an abundant number, since it is smaller than the sum of its proper divisors (160061857380).

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

69023318940 is a wasteful number, since it uses less digits than its factorization.

69023318940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783 (or 1769 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 69023318940 in words is "sixty-nine billion, twenty-three million, three hundred eighteen thousand, nine hundred forty".