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72849049 = 713800539
BaseRepresentation
bin1000101011110…
…01011010011001
312002002010002221
410111321122121
5122122132144
611121224041
71543130620
oct425713231
9162063087
1072849049
1138137629
1220492021
1312128560
1499646b7
1565ded84
hex4579699

72849049 has 8 divisors (see below), whose sum is σ = 89660480. Its totient is φ = 57638736.

The previous prime is 72849047. The next prime is 72849121. The reversal of 72849049 is 94094827.

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 72849049 - 21 = 72849047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72848996 and 72849014.

It is not an unprimeable number, because it can be changed into a prime (72849043) 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, 400179 + ... + 400360.

It is an arithmetic number, because the mean of its divisors is an integer number (11207560).

Almost surely, 272849049 is an apocalyptic number.

It is an amenable number.

72849049 is a deficient number, since it is larger than the sum of its proper divisors (16811431).

72849049 is a wasteful number, since it uses less digits than its factorization.

72849049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800559.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 72849049 is about 8535.1654348349. The cubic root of 72849049 is about 417.6456498768.

The spelling of 72849049 in words is "seventy-two million, eight hundred forty-nine thousand, forty-nine".

Divisors: 1 7 13 91 800539 5603773 10407007 72849049