Search a number
-
+
72125230 = 257212523
BaseRepresentation
bin1000100110010…
…00101100101110
312000201100012211
410103020230232
5121431001410
611053521034
71534024432
oct423105456
9160640184
1072125230
1137792831
12201a317a
1311c33c68
1498169c2
1564ea68a
hex44c8b2e

72125230 has 8 divisors (see below), whose sum is σ = 129825432. Its totient is φ = 28850088.

The previous prime is 72125227. The next prime is 72125267. The reversal of 72125230 is 3252127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 3606252 + ... + 3606271.

It is an arithmetic number, because the mean of its divisors is an integer number (16228179).

Almost surely, 272125230 is an apocalyptic number.

72125230 is a deficient number, since it is larger than the sum of its proper divisors (57700202).

72125230 is a wasteful number, since it uses less digits than its factorization.

72125230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212530.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 72125230 is about 8492.6574168513. The cubic root of 72125230 is about 416.2578183323.

Adding to 72125230 its reverse (3252127), we get a palindrome (75377357).

The spelling of 72125230 in words is "seventy-two million, one hundred twenty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 7212523 14425046 36062615 72125230