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53700000000 = 28358179
BaseRepresentation
bin110010000000110001…
…001111100100000000
312010121110000122102220
4302000301033210000
51334434200000000
640400333211040
73610510316523
oct620061174400
9163543018386
1053700000000
1120857282899
12a4a8030a80
1350aa49363a
142855cb0bba
1515e460b1a0
hexc80c4f900

53700000000 has 324 divisors, whose sum is σ = 179648345520. Its totient is φ = 14240000000.

The previous prime is 53699999981. The next prime is 53700000001. The reversal of 53700000000 is 735.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (53700000001) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 299999911 + ... + 300000089.

Almost surely, 253700000000 is an apocalyptic number.

53700000000 is a gapful number since it is divisible by the number (50) 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 53700000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89824172760).

53700000000 is an abundant number, since it is smaller than the sum of its proper divisors (125948345520).

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

53700000000 is an frugal number, since it uses more digits than its factorization.

53700000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 15.

Adding to 53700000000 its reverse (735), we get a palindrome (53700000735).

The spelling of 53700000000 in words is "fifty-three billion, seven hundred million", and thus it is an aban number.