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52444431400 = 2352262222157
BaseRepresentation
bin110000110101111011…
…101000010000101000
312000100221110011010011
4300311323220100220
51324401233301100
640032002101304
73534423211624
oct606573502050
9160327404104
1052444431400
1120272572599
12a1b764a834
134c3a31423a
142777238184
15156e295bba
hexc35ee8428

52444431400 has 24 divisors (see below), whose sum is σ = 121933303470. Its totient is φ = 20977772480.

The previous prime is 52444431379. The next prime is 52444431409. The reversal of 52444431400 is 413444425.

It can be written as a sum of positive squares in 3 ways, for example, as 48525921796 + 3918509604 = 220286^2 + 62598^2 .

It is not an unprimeable number, because it can be changed into a prime (52444431409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131110879 + ... + 131111278.

Almost surely, 252444431400 is an apocalyptic number.

52444431400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52444431400 is an abundant number, since it is smaller than the sum of its proper divisors (69488872070).

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

52444431400 is a wasteful number, since it uses less digits than its factorization.

52444431400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262222173 (or 262222164 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 52444431400 its reverse (413444425), we get a palindrome (52857875825).

The spelling of 52444431400 in words is "fifty-two billion, four hundred forty-four million, four hundred thirty-one thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 262222157 524444314 1048888628 1311110785 2097777256 2622221570 5244443140 6555553925 10488886280 13111107850 26222215700 52444431400