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102023485 = 520404697
BaseRepresentation
bin1100001010011…
…00000100111101
321002222022220121
412011030010331
5202104222420
614042414541
72346120364
oct605140475
9232868817
10102023485
1152653833
122a201451
13181a1835
14d79a7db
158e542aa
hex614c13d

102023485 has 4 divisors (see below), whose sum is σ = 122428188. Its totient is φ = 81618784.

The previous prime is 102023447. The next prime is 102023501. The reversal of 102023485 is 584320201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11431161 + 90592324 = 3381^2 + 9518^2 .

It is a cyclic number.

It is not a de Polignac number, because 102023485 - 225 = 68469053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10202344 + ... + 10202353.

It is an arithmetic number, because the mean of its divisors is an integer number (30607047).

Almost surely, 2102023485 is an apocalyptic number.

It is an amenable number.

102023485 is a deficient number, since it is larger than the sum of its proper divisors (20404703).

102023485 is an equidigital number, since it uses as much as digits as its factorization.

102023485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20404702.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 102023485 is about 10100.6675521967. The cubic root of 102023485 is about 467.2687294433.

Adding to 102023485 its reverse (584320201), we get a palindrome (686343686).

The spelling of 102023485 in words is "one hundred two million, twenty-three thousand, four hundred eighty-five".

Divisors: 1 5 20404697 102023485