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914545466640 = 243351383894409
BaseRepresentation
bin11010100111011110010…
…10000101110100010000
310020102121020122100101000
431103233022011310100
5104440442114413030
61540045243142000
7123034201126551
oct15235712056420
93212536570330
10914545466640
1132294708a203
121292b3514900
136831a0abbc0
143239b0cc328
1518bc94a9860
hexd4ef285d10

914545466640 has 640 divisors, whose sum is σ = 3472652736000. Its totient is φ = 219857780736.

The previous prime is 914545466543. The next prime is 914545466647. The reversal of 914545466640 is 46664545419.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (914545466647) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 207424756 + ... + 207429164.

It is an arithmetic number, because the mean of its divisors is an integer number (5426019900).

Almost surely, 2914545466640 is an apocalyptic number.

914545466640 is a gapful number since it is divisible by the number (90) 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 914545466640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1736326368000).

914545466640 is an abundant number, since it is smaller than the sum of its proper divisors (2558107269360).

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

914545466640 is a wasteful number, since it uses less digits than its factorization.

914545466640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4616 (or 4604 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 914545466640 in words is "nine hundred fourteen billion, five hundred forty-five million, four hundred sixty-six thousand, six hundred forty".