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75764540 = 2253788227
BaseRepresentation
bin1001000010000…
…01001100111100
312021120020102002
410201001030330
5123343431130
611303521432
71606662605
oct441011474
9167506362
1075764540
1139849025
1221459278
13129095b7
14a0c2dac
1569b8b45
hex484133c

75764540 has 12 divisors (see below), whose sum is σ = 159105576. Its totient is φ = 30305808.

The previous prime is 75764537. The next prime is 75764561. The reversal of 75764540 is 4546757.

It is a junction number, because it is equal to n+sod(n) for n = 75764494 and 75764503.

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, 1894094 + ... + 1894133.

It is an arithmetic number, because the mean of its divisors is an integer number (13258798).

Almost surely, 275764540 is an apocalyptic number.

It is an amenable number.

75764540 is an abundant number, since it is smaller than the sum of its proper divisors (83341036).

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

75764540 is a wasteful number, since it uses less digits than its factorization.

75764540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788236 (or 3788234 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 75764540 is about 8704.2828538599. The cubic root of 75764540 is about 423.1444642159.

The spelling of 75764540 in words is "seventy-five million, seven hundred sixty-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 3788227 7576454 15152908 18941135 37882270 75764540