Search a number
-
+
469940 = 22523497
BaseRepresentation
bin1110010101110110100
3212212122012
41302232310
5110014230
614023352
73665042
oct1625664
9785565
10469940
112a1089
121a7b58
13135b93
14c3392
1594395
hex72bb4

469940 has 12 divisors (see below), whose sum is σ = 986916. Its totient is φ = 187968.

The previous prime is 469939. The next prime is 469957. The reversal of 469940 is 49964.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 274576 + 195364 = 524^2 + 442^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 469897 and 469906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11729 + ... + 11768.

It is an arithmetic number, because the mean of its divisors is an integer number (82243).

2469940 is an apocalyptic number.

It is an amenable number.

469940 is an abundant number, since it is smaller than the sum of its proper divisors (516976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

469940 is a wasteful number, since it uses less digits than its factorization.

469940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23506 (or 23504 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 469940 is about 685.5216991460. The cubic root of 469940 is about 77.7464923305.

The spelling of 469940 in words is "four hundred sixty-nine thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 23497 46994 93988 117485 234970 469940