Search a number
-
+
23214020 = 2251577393
BaseRepresentation
bin101100010001…
…1011111000100
31121200101122112
41120203133010
521420322040
62145320152
7401213234
oct130433704
947611575
1023214020
1112116045
127936058
134a6a30b
143123cc4
152088365
hex16237c4

23214020 has 24 divisors (see below), whose sum is σ = 49066584. Its totient is φ = 9225216.

The previous prime is 23214019. The next prime is 23214031. The reversal of 23214020 is 2041232.

It can be written as a sum of positive squares in 4 ways, for example, as 20164 + 23193856 = 142^2 + 4816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23213986 and 23214004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (2044441).

Almost surely, 223214020 is an apocalyptic number.

23214020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23214020 is an abundant number, since it is smaller than the sum of its proper divisors (25852564).

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

23214020 is a wasteful number, since it uses less digits than its factorization.

23214020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559 (or 7557 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 23214020 is about 4818.0929837437. The cubic root of 23214020 is about 285.2660693679.

Adding to 23214020 its reverse (2041232), we get a palindrome (25255252).

The spelling of 23214020 in words is "twenty-three million, two hundred fourteen thousand, twenty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 3140 7393 14786 29572 36965 73930 147860 1160701 2321402 4642804 5803505 11607010 23214020