Search a number
-
+
661292 = 22315333
BaseRepresentation
bin10100001011100101100
31020121010022
42201130230
5132130132
622101312
75422652
oct2413454
91217108
10661292
11411925
1227a838
131a1cc8
14132dd2
15d0e12
hexa172c

661292 has 12 divisors (see below), whose sum is σ = 1194816. Its totient is φ = 319920.

The previous prime is 661267. The next prime is 661321. The reversal of 661292 is 292166.

661292 = 2842 + 2852 + ... + 2912.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 661292.

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, 2543 + ... + 2790.

It is an arithmetic number, because the mean of its divisors is an integer number (99568).

2661292 is an apocalyptic number.

661292 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

661292 is a deficient number, since it is larger than the sum of its proper divisors (533524).

661292 is a wasteful number, since it uses less digits than its factorization.

661292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368 (or 5366 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 661292 is about 813.1986227239. The cubic root of 661292 is about 87.1226525636.

The spelling of 661292 in words is "six hundred sixty-one thousand, two hundred ninety-two".

Divisors: 1 2 4 31 62 124 5333 10666 21332 165323 330646 661292