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210372141 = 3724730449
BaseRepresentation
bin11001000101000…
…00011000101101
3112122212000022210
430202200120231
5412323402031
632513001033
75133063600
oct1442403055
9478760283
10210372141
11a8827781
125a553179
1334779375
141dd22337
1513707746
hexc8a062d

210372141 has 24 divisors (see below), whose sum is σ = 333244800. Its totient is φ = 117651072.

The previous prime is 210372133. The next prime is 210372157. The reversal of 210372141 is 141273012.

It is not a de Polignac number, because 210372141 - 23 = 210372133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210372241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8316 + ... + 22133.

It is an arithmetic number, because the mean of its divisors is an integer number (13885200).

Almost surely, 2210372141 is an apocalyptic number.

210372141 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210372141 is a deficient number, since it is larger than the sum of its proper divisors (122872659).

210372141 is a wasteful number, since it uses less digits than its factorization.

210372141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30513 (or 30506 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 210372141 is about 14504.2111471117. The cubic root of 210372141 is about 594.7430955508.

The spelling of 210372141 in words is "two hundred ten million, three hundred seventy-two thousand, one hundred forty-one".

Divisors: 1 3 7 21 47 49 141 147 329 987 2303 6909 30449 91347 213143 639429 1431103 1492001 4293309 4476003 10017721 30053163 70124047 210372141