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45815357629440 = 21032572313831709
BaseRepresentation
bin10100110101011001110000…
…00111011110010000000000
320000012220110001021021202200
422122230320013132100000
522001114323023120230
6241235141300313200
712436023162231600
oct1232547007362000
9200186401237680
1045815357629440
1113664202a83663
12517b3a66a2800
131c744a627c199
14b45691b02c00
15546b68b39160
hex29ab381de400

45815357629440 has 1584 divisors, whose sum is σ = 191233782005760. Its totient is φ = 10101897953280.

The previous prime is 45815357629421. The next prime is 45815357629477. The reversal of 45815357629440 is 4492675351854.

It is a happy number.

45815357629440 is a `hidden beast` number, since 4 + 5 + 8 + 1 + 53 + 576 + 2 + 9 + 4 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 26808283306 + ... + 26808285014.

It is a 1-persistent number, because it is pandigital, but 2⋅45815357629440 = 91630715258880 is not.

Almost surely, 245815357629440 is an apocalyptic number.

45815357629440 is a gapful number since it is divisible by the number (40) 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 45815357629440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95616891002880).

45815357629440 is an abundant number, since it is smaller than the sum of its proper divisors (145418424376320).

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

45815357629440 is a wasteful number, since it uses less digits than its factorization.

45815357629440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 145152000, while the sum is 63.

The spelling of 45815357629440 in words is "forty-five trillion, eight hundred fifteen billion, three hundred fifty-seven million, six hundred twenty-nine thousand, four hundred forty".