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102021054 = 2323739283
BaseRepresentation
bin1100001010010…
…11011110111110
321002222012120120
412011023132332
5202104133204
614042355410
72346110322
oct605133676
9232865516
10102021054
1152651a23
122a1bbb66
13181a06b5
14d799982
158e536d9
hex614b7be

102021054 has 16 divisors (see below), whose sum is σ = 212913792. Its totient is φ = 32528408.

The previous prime is 102021037. The next prime is 102021083. The reversal of 102021054 is 450120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369504 + ... + 369779.

It is an arithmetic number, because the mean of its divisors is an integer number (13307112).

Almost surely, 2102021054 is an apocalyptic number.

102021054 is an abundant number, since it is smaller than the sum of its proper divisors (110892738).

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

102021054 is a wasteful number, since it uses less digits than its factorization.

102021054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739311.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 102021054 is about 10100.5472128989. The cubic root of 102021054 is about 467.2650180778.

Adding to 102021054 its reverse (450120201), we get a palindrome (552141255).

The spelling of 102021054 in words is "one hundred two million, twenty-one thousand, fifty-four".

Divisors: 1 2 3 6 23 46 69 138 739283 1478566 2217849 4435698 17003509 34007018 51010527 102021054