Search a number
-
+
65430495 = 32513111847
BaseRepresentation
bin1111100110011…
…0001111011111
311120010012202200
43321212033133
5113222233440
610254222543
71423102314
oct371461737
9146105680
1065430495
1133a2a999
1219ab4a53
131072b990
148992d0b
155b26c30
hex3e663df

65430495 has 24 divisors (see below), whose sum is σ = 122138016. Its totient is φ = 32211648.

The previous prime is 65430493. The next prime is 65430517. The reversal of 65430495 is 59403456.

It is a happy number.

It is not a de Polignac number, because 65430495 - 21 = 65430493 is a prime.

It is a super-2 number, since 2×654304952 = 8562299351890050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65430493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55339 + ... + 56508.

It is an arithmetic number, because the mean of its divisors is an integer number (5089084).

Almost surely, 265430495 is an apocalyptic number.

65430495 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65430495 is a deficient number, since it is larger than the sum of its proper divisors (56707521).

65430495 is a wasteful number, since it uses less digits than its factorization.

65430495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111871 (or 111868 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 65430495 is about 8088.9118551261. The cubic root of 65430495 is about 402.9582656427.

The spelling of 65430495 in words is "sixty-five million, four hundred thirty thousand, four hundred ninety-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 111847 335541 559235 1006623 1454011 1677705 4362033 5033115 7270055 13086099 21810165 65430495