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102062231 = 131779101
BaseRepresentation
bin1100001010101…
…01100010010111
321010001022001122
412011111202113
5202111442411
614043314155
72346341345
oct605254227
9233038048
10102062231
115267a957
122a21b95b
13181b636b
14d7aa995
158e609db
hex6155897

102062231 has 4 divisors (see below), whose sum is σ = 102841464. Its totient is φ = 101283000.

The previous prime is 102062197. The next prime is 102062251. The reversal of 102062231 is 132260201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102062231 - 222 = 97867927 is a prime.

It is a super-2 number, since 2×1020622312 = 20833397993394722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102062251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389420 + ... + 389681.

It is an arithmetic number, because the mean of its divisors is an integer number (25710366).

Almost surely, 2102062231 is an apocalyptic number.

102062231 is a deficient number, since it is larger than the sum of its proper divisors (779233).

102062231 is an equidigital number, since it uses as much as digits as its factorization.

102062231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779232.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 102062231 is about 10102.5853621734. The cubic root of 102062231 is about 467.3278743312.

The spelling of 102062231 in words is "one hundred two million, sixty-two thousand, two hundred thirty-one".

Divisors: 1 131 779101 102062231