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72952439 = 797107441
BaseRepresentation
bin1000101100100…
…10101001110111
312002021100221012
410112102221313
5122133434224
611123342435
71544041220
oct426225167
9162240835
1072952439
11381a827a
1220521a1b
1312163631
149990247
15661080e
hex4592a77

72952439 has 8 divisors (see below), whose sum is σ = 84234528. Its totient is φ = 61885440.

The previous prime is 72952427. The next prime is 72952441. The reversal of 72952439 is 93425927.

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 72952439 - 28 = 72952183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72952396 and 72952405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72952409) 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, 53042 + ... + 54399.

It is an arithmetic number, because the mean of its divisors is an integer number (10529316).

Almost surely, 272952439 is an apocalyptic number.

72952439 is a deficient number, since it is larger than the sum of its proper divisors (11282089).

72952439 is a wasteful number, since it uses less digits than its factorization.

72952439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107545.

The product of its digits is 136080, while the sum is 41.

The square root of 72952439 is about 8541.2199948251. The cubic root of 72952439 is about 417.8431357406.

The spelling of 72952439 in words is "seventy-two million, nine hundred fifty-two thousand, four hundred thirty-nine".

Divisors: 1 7 97 679 107441 752087 10421777 72952439