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420511314400 = 25521972668219
BaseRepresentation
bin1100001111010000110…
…11010111000111100000
31111012102011020002201221
412013220123113013200
523342201344030100
6521102532504424
742244443124312
oct6075033270740
91435364202657
10420511314400
11152379746501
12695b847b114
1330866c2cc78
14164d23477b2
15ae124b501a
hex61e86d71e0

420511314400 has 72 divisors (see below), whose sum is σ = 1031784664680. Its totient is φ = 167350632960.

The previous prime is 420511314359. The next prime is 420511314409. The reversal of 420511314400 is 4413115024.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420511314409) 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 11 ways as a sum of consecutive naturals, for example, 1176510 + ... + 1491709.

It is an arithmetic number, because the mean of its divisors is an integer number (14330342565).

Almost surely, 2420511314400 is an apocalyptic number.

420511314400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420511314400 is an abundant number, since it is smaller than the sum of its proper divisors (611273350280).

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

420511314400 is a wasteful number, since it uses less digits than its factorization.

420511314400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668436 (or 2668423 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 420511314400 its reverse (4413115024), we get a palindrome (424924429424).

The spelling of 420511314400 in words is "four hundred twenty billion, five hundred eleven million, three hundred fourteen thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 197 200 394 400 788 800 985 1576 1970 3152 3940 4925 6304 7880 9850 15760 19700 31520 39400 78800 157600 2668219 5336438 10672876 13341095 21345752 26682190 42691504 53364380 66705475 85383008 106728760 133410950 213457520 266821900 426915040 525639143 533643800 1051278286 1067287600 2102556572 2134575200 2628195715 4205113144 5256391430 8410226288 10512782860 13140978575 16820452576 21025565720 26281957150 42051131440 52563914300 84102262880 105127828600 210255657200 420511314400