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72575097 = 3723247139
BaseRepresentation
bin1000101001101…
…10100001111001
312001120012022120
410110312201321
5122034400342
611111311453
71540610130
oct424664171
9161505276
1072575097
1137a6a821
122037b589
131206095a
1498d2917
156588aec
hex4536879

72575097 has 48 divisors (see below), whose sum is σ = 118917120. Its totient is φ = 38545056.

The previous prime is 72575071. The next prime is 72575119. The reversal of 72575097 is 79057527.

It is not a de Polignac number, because 72575097 - 26 = 72575033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72575017) 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 47 ways as a sum of consecutive naturals, for example, 522054 + ... + 522192.

It is an arithmetic number, because the mean of its divisors is an integer number (2477440).

Almost surely, 272575097 is an apocalyptic number.

It is an amenable number.

72575097 is a deficient number, since it is larger than the sum of its proper divisors (46342023).

72575097 is a wasteful number, since it uses less digits than its factorization.

72575097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 154350, while the sum is 42.

The square root of 72575097 is about 8519.1018892839. The cubic root of 72575097 is about 417.1214674122.

The spelling of 72575097 in words is "seventy-two million, five hundred seventy-five thousand, ninety-seven".

Divisors: 1 3 7 21 23 47 69 139 141 161 329 417 483 529 973 987 1081 1587 2919 3197 3243 3703 6533 7567 9591 11109 19599 22379 22701 24863 45731 67137 73531 74589 137193 150259 174041 220593 450777 514717 522123 1051813 1544151 3155439 3455957 10367871 24191699 72575097