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72485743 = 1141915727
BaseRepresentation
bin1000101001000…
…00101101101111
312001101122202011
410110200231233
5122024020433
611105342051
71540055461
oct424405557
9161348664
1072485743
1137a09680
1220337927
131202c095
1498ac131
15656c3cd
hex4520b6f

72485743 has 8 divisors (see below), whose sum is σ = 79269120. Its totient is φ = 65734680.

The previous prime is 72485731. The next prime is 72485747. The reversal of 72485743 is 34758427.

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

It is not a de Polignac number, because 72485743 - 25 = 72485711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72485696 and 72485705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72485747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3255 + ... + 12472.

It is an arithmetic number, because the mean of its divisors is an integer number (9908640).

Almost surely, 272485743 is an apocalyptic number.

72485743 is a deficient number, since it is larger than the sum of its proper divisors (6783377).

72485743 is a wasteful number, since it uses less digits than its factorization.

72485743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16157.

The product of its digits is 188160, while the sum is 40.

The square root of 72485743 is about 8513.8559419337. The cubic root of 72485743 is about 416.9502113398.

The spelling of 72485743 in words is "seventy-two million, four hundred eighty-five thousand, seven hundred forty-three".

Divisors: 1 11 419 4609 15727 172997 6589613 72485743