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102415023 = 3746829
BaseRepresentation
bin1100001101010…
…11101010101111
321010201020000000
412012223222233
5202204240043
614055035343
72352341034
oct606535257
9233636000
10102415023
11528a0a17
122a36bb53
13182aab09
14d85d38b
158ed02d3
hex61abaaf

102415023 has 16 divisors (see below), whose sum is σ = 153602400. Its totient is φ = 68275224.

The previous prime is 102415013. The next prime is 102415031. The reversal of 102415023 is 320514201.

It is not a de Polignac number, because 102415023 - 210 = 102413999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102414987 and 102415005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102415003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21228 + ... + 25601.

It is an arithmetic number, because the mean of its divisors is an integer number (9600150).

Almost surely, 2102415023 is an apocalyptic number.

102415023 is a deficient number, since it is larger than the sum of its proper divisors (51187377).

102415023 is an frugal number, since it uses more digits than its factorization.

102415023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46850 (or 46832 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102415023 is about 10120.0307805856. The cubic root of 102415023 is about 467.8657159112.

Adding to 102415023 its reverse (320514201), we get a palindrome (422929224).

The spelling of 102415023 in words is "one hundred two million, four hundred fifteen thousand, twenty-three".

Divisors: 1 3 9 27 81 243 729 2187 46829 140487 421461 1264383 3793149 11379447 34138341 102415023