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72411045 = 357689629
BaseRepresentation
bin1000101000011…
…10011110100101
312001020212021120
410110032132211
5122014123140
611104004153
71536324630
oct424163645
9161225246
1072411045
1137968543
1220300659
1312004095
14988cc17
1565551d0
hex450e7a5

72411045 has 16 divisors (see below), whose sum is σ = 132408960. Its totient is φ = 33102144.

The previous prime is 72411029. The next prime is 72411047. The reversal of 72411045 is 54011427.

It is not a de Polignac number, because 72411045 - 24 = 72411029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72411047) 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 15 ways as a sum of consecutive naturals, for example, 344710 + ... + 344919.

It is an arithmetic number, because the mean of its divisors is an integer number (8275560).

Almost surely, 272411045 is an apocalyptic number.

It is an amenable number.

72411045 is a deficient number, since it is larger than the sum of its proper divisors (59997915).

72411045 is a wasteful number, since it uses less digits than its factorization.

72411045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689644.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 72411045 is about 8509.4679622171. The cubic root of 72411045 is about 416.8069369507.

The spelling of 72411045 in words is "seventy-two million, four hundred eleven thousand, forty-five".

Divisors: 1 3 5 7 15 21 35 105 689629 2068887 3448145 4827403 10344435 14482209 24137015 72411045