Search a number
-
+
72025061 = 211353967
BaseRepresentation
bin1000100101100…
…00001111100101
312000112020210212
410102300033211
5121414300221
611051425205
71533126413
oct422601745
9160466725
1072025061
1137724549
1220155205
1311bca4a4
1497cc2b3
1564cab5b
hex44b03e5

72025061 has 8 divisors (see below), whose sum is σ = 72646464. Its totient is φ = 71406720.

The previous prime is 72025049. The next prime is 72025087. The reversal of 72025061 is 16052027.

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

It is a cyclic number.

It is not a de Polignac number, because 72025061 - 218 = 71762917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72025001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74000 + ... + 74966.

It is an arithmetic number, because the mean of its divisors is an integer number (9080808).

Almost surely, 272025061 is an apocalyptic number.

It is an amenable number.

72025061 is a deficient number, since it is larger than the sum of its proper divisors (621403).

72025061 is a wasteful number, since it uses less digits than its factorization.

72025061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 72025061 is about 8486.7579793464. The cubic root of 72025061 is about 416.0650265860.

Adding to 72025061 its reverse (16052027), we get a palindrome (88077088).

The spelling of 72025061 in words is "seventy-two million, twenty-five thousand, sixty-one".

Divisors: 1 211 353 967 74483 204037 341351 72025061