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102020433 = 3233789449
BaseRepresentation
bin1100001010010…
…11010101010001
321002222011201120
412011023111101
5202104123213
614042352453
72346105444
oct605132521
9232864646
10102020433
1152651509
122a1bb729
13181a0328
14d79965b
158e53423
hex614b551

102020433 has 32 divisors (see below), whose sum is σ = 147744000. Its totient is φ = 62447616.

The previous prime is 102020419. The next prime is 102020447. The reversal of 102020433 is 334020201.

It is an interprime number because it is at equal distance from previous prime (102020419) and next prime (102020447).

It is not a de Polignac number, because 102020433 - 29 = 102019921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102020453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226993 + ... + 227441.

It is an arithmetic number, because the mean of its divisors is an integer number (4617000).

Almost surely, 2102020433 is an apocalyptic number.

It is an amenable number.

102020433 is a deficient number, since it is larger than the sum of its proper divisors (45723567).

102020433 is a wasteful number, since it uses less digits than its factorization.

102020433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 102020433 is about 10100.5164719434. The cubic root of 102020433 is about 467.2640699985.

Adding to 102020433 its reverse (334020201), we get a palindrome (436040634).

The spelling of 102020433 in words is "one hundred two million, twenty thousand, four hundred thirty-three".

Divisors: 1 3 23 37 69 89 111 267 449 851 1347 2047 2553 3293 6141 9879 10327 16613 30981 39961 49839 75739 119883 227217 382099 919103 1146297 1478557 2757309 4435671 34006811 102020433