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145893779306496 = 21137134789599
BaseRepresentation
bin100001001011000010001010…
…111000111111100000000000
3201010120022100022210210000000
4201023002022320333200000
5123110310430000301441
61234142402120000000
742505322566561134
oct4113021270774000
9633508308723000
10145893779306496
1142539227a80491
1214443237600000
136353955543a20
142805421bdd3c4
1511d007305b2b6
hex84b08ae3f800

145893779306496 has 1536 divisors, whose sum is σ = 487405900800000. Its totient is φ = 43369100476416.

The previous prime is 145893779306479. The next prime is 145893779306497. The reversal of 145893779306496 is 694603977398541.

145893779306496 is a `hidden beast` number, since 1 + 4 + 5 + 8 + 9 + 37 + 7 + 93 + 0 + 6 + 496 = 666.

It is a tau number, because it is divible by the number of its divisors (1536).

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145893779306497) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 243562235605 + ... + 243562236203.

It is an arithmetic number, because the mean of its divisors is an integer number (317321550000).

Almost surely, 2145893779306496 is an apocalyptic number.

145893779306496 is a gapful number since it is divisible by the number (16) 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 145893779306496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243702950400000).

145893779306496 is an abundant number, since it is smaller than the sum of its proper divisors (341512121493504).

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

145893779306496 is an frugal number, since it uses more digits than its factorization.

145893779306496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 7407106560, while the sum is 81.

The spelling of 145893779306496 in words is "one hundred forty-five trillion, eight hundred ninety-three billion, seven hundred seventy-nine million, three hundred six thousand, four hundred ninety-six".