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761164540 = 22543986693
BaseRepresentation
bin101101010111100…
…111001011111100
31222001021011110021
4231113213023330
53024324231130
6203310221524
724601535413
oct5527471374
91861234407
10761164540
11360726204
12192ab48a4
13c1906426
147313a47a
1546c5537a
hex2d5e72fc

761164540 has 24 divisors (see below), whose sum is σ = 1602105120. Its totient is φ = 303768768.

The previous prime is 761164513. The next prime is 761164559. The reversal of 761164540 is 45461167.

It is a junction number, because it is equal to n+sod(n) for n = 761164496 and 761164505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34567 + ... + 52126.

It is an arithmetic number, because the mean of its divisors is an integer number (66754380).

Almost surely, 2761164540 is an apocalyptic number.

It is an amenable number.

761164540 is an abundant number, since it is smaller than the sum of its proper divisors (840940580).

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

761164540 is a wasteful number, since it uses less digits than its factorization.

761164540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87141 (or 87139 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 761164540 is about 27589.2105722509. The cubic root of 761164540 is about 913.0464017186.

It can be divided in two parts, 76116 and 4540, that added together give a square (80656 = 2842).

The spelling of 761164540 in words is "seven hundred sixty-one million, one hundred sixty-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 439 878 1756 2195 4390 8780 86693 173386 346772 433465 866930 1733860 38058227 76116454 152232908 190291135 380582270 761164540