Search a number
-
+
102430425 = 3521971881
BaseRepresentation
bin1100001101011…
…11011011011001
321010202000010110
412012233123121
5202210233200
614055234533
72352433656
oct606573331
9233660113
10102430425
1152901549
122a378a49
13182b4b26
14d864c2d
158ed4b50
hex61af6d9

102430425 has 24 divisors (see below), whose sum is σ = 178267360. Its totient is φ = 51753600.

The previous prime is 102430409. The next prime is 102430439. The reversal of 102430425 is 524034201.

It is not a de Polignac number, because 102430425 - 24 = 102430409 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34516 + ... + 37365.

Almost surely, 2102430425 is an apocalyptic number.

102430425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102430425 is a deficient number, since it is larger than the sum of its proper divisors (75836935).

102430425 is a wasteful number, since it uses less digits than its factorization.

102430425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71913 (or 71908 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 102430425 is about 10120.7917180426. The cubic root of 102430425 is about 467.8891685465.

Adding to 102430425 its reverse (524034201), we get a palindrome (626464626).

The spelling of 102430425 in words is "one hundred two million, four hundred thirty thousand, four hundred twenty-five".

Divisors: 1 3 5 15 19 25 57 75 95 285 475 1425 71881 215643 359405 1078215 1365739 1797025 4097217 5391075 6828695 20486085 34143475 102430425