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75030484 = 22121715413
BaseRepresentation
bin1000111100011…
…01111111010100
312020011221110211
410132031333110
5123201433414
611240055204
71600514524
oct436157724
9166157424
1075030484
1139397571
1221164504
1312710449
149d71684
1568c13c4
hex478dfd4

75030484 has 12 divisors (see below), whose sum is σ = 131419764. Its totient is φ = 37481984.

The previous prime is 75030479. The next prime is 75030491. The reversal of 75030484 is 48403057.

It can be written as a sum of positive squares in 2 ways, for example, as 46621584 + 28408900 = 6828^2 + 5330^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2839 + ... + 12574.

It is an arithmetic number, because the mean of its divisors is an integer number (10951647).

Almost surely, 275030484 is an apocalyptic number.

It is an amenable number.

75030484 is a deficient number, since it is larger than the sum of its proper divisors (56389280).

75030484 is a wasteful number, since it uses less digits than its factorization.

75030484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16634 (or 16632 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 75030484 is about 8662.0138536024. The cubic root of 75030484 is about 421.7734609146.

The spelling of 75030484 in words is "seventy-five million, thirty thousand, four hundred eighty-four".

Divisors: 1 2 4 1217 2434 4868 15413 30826 61652 18757621 37515242 75030484