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75838664 = 2311861803
BaseRepresentation
bin1001000010100…
…11010011001000
312021201000002102
410201103103020
5123403314124
611305252532
71610421656
oct441232310
9167630072
1075838664
1139899790
1221494148
1312934265
14a101dd6
1569d0aae
hex48534c8

75838664 has 16 divisors (see below), whose sum is σ = 155124720. Its totient is φ = 34472080.

The previous prime is 75838663. The next prime is 75838669. The reversal of 75838664 is 46683857.

It is not an unprimeable number, because it can be changed into a prime (75838663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430814 + ... + 430989.

It is an arithmetic number, because the mean of its divisors is an integer number (9695295).

Almost surely, 275838664 is an apocalyptic number.

It is an amenable number.

75838664 is an abundant number, since it is smaller than the sum of its proper divisors (79286056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75838664 is a wasteful number, since it uses less digits than its factorization.

75838664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861820 (or 861816 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 75838664 is about 8708.5397168526. The cubic root of 75838664 is about 423.2824132580.

The spelling of 75838664 in words is "seventy-five million, eight hundred thirty-eight thousand, six hundred sixty-four".

Divisors: 1 2 4 8 11 22 44 88 861803 1723606 3447212 6894424 9479833 18959666 37919332 75838664