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214268519520 = 253251117795709
BaseRepresentation
bin1100011110001101100…
…1100010010001100000
3202111001202000120121100
43013203121202101200
512002310220111040
6242233353554400
721323526236166
oct3074331422140
9674052016540
10214268519520
1182963aa20a0
123563a115a00
1317289456033
14a5290d5236
155890e48b30
hex31e3662460

214268519520 has 288 divisors, whose sum is σ = 844585691040. Its totient is φ = 48888299520.

The previous prime is 214268519467. The next prime is 214268519579. The reversal of 214268519520 is 25915862412.

214268519520 is a `hidden beast` number, since 2 + 1 + 42 + 6 + 85 + 1 + 9 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128575 + ... + 667134.

It is an arithmetic number, because the mean of its divisors is an integer number (2932589205).

Almost surely, 2214268519520 is an apocalyptic number.

214268519520 is a gapful number since it is divisible by the number (20) 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 214268519520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422292845520).

214268519520 is an abundant number, since it is smaller than the sum of its proper divisors (630317171520).

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

214268519520 is a wasteful number, since it uses less digits than its factorization.

214268519520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795758 (or 795747 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 214268519520 in words is "two hundred fourteen billion, two hundred sixty-eight million, five hundred nineteen thousand, five hundred twenty".