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315441164640 = 25357192318389
BaseRepresentation
bin1001001011100011100…
…00100011000101100000
31010011012122012110112210
410211301300203011200
520132010414232030
6400524530522120
731534632442140
oct4456160430540
91104178173483
10315441164640
1111186134a898
1251174736340
1323990b9cc14
14113a5ba4920
1583130b8bb0
hex4971c23160

315441164640 has 576 divisors, whose sum is σ = 1237310484480. Its totient is φ = 66094755840.

The previous prime is 315441164579. The next prime is 315441164641. The reversal of 315441164640 is 46461144513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315441164641) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37597566 + ... + 37605954.

It is an arithmetic number, because the mean of its divisors is an integer number (2148108480).

Almost surely, 2315441164640 is an apocalyptic number.

315441164640 is a gapful number since it is divisible by the number (30) 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 315441164640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618655242240).

315441164640 is an abundant number, since it is smaller than the sum of its proper divisors (921869319840).

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

315441164640 is a wasteful number, since it uses less digits than its factorization.

315441164640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8483 (or 8456 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 315441164640 in words is "three hundred fifteen billion, four hundred forty-one million, one hundred sixty-four thousand, six hundred forty".