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75213892 = 221310114321
BaseRepresentation
bin1000111101110…
…10110001000100
312020112021001201
410132322301010
5123223321032
611244032244
71602210325
oct436726104
9166467051
1075213892
1139502346
1221232684
1312775a80
149dbc44c
15690a8e7
hex47bac44

75213892 has 24 divisors (see below), whose sum is σ = 143162712. Its totient is φ = 34368000.

The previous prime is 75213889. The next prime is 75213917. The reversal of 75213892 is 29831257.

It can be written as a sum of positive squares in 4 ways, for example, as 1700416 + 73513476 = 1304^2 + 8574^2 .

It is an unprimeable number.

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, 1909 + ... + 12412.

It is an arithmetic number, because the mean of its divisors is an integer number (5965113).

Almost surely, 275213892 is an apocalyptic number.

It is an amenable number.

75213892 is a deficient number, since it is larger than the sum of its proper divisors (67948820).

75213892 is a wasteful number, since it uses less digits than its factorization.

75213892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14439 (or 14437 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 75213892 is about 8672.5943062039. The cubic root of 75213892 is about 422.1168488146.

The spelling of 75213892 in words is "seventy-five million, two hundred thirteen thousand, eight hundred ninety-two".

Divisors: 1 2 4 13 26 52 101 202 404 1313 2626 5252 14321 28642 57284 186173 372346 744692 1446421 2892842 5785684 18803473 37606946 75213892