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76378576 = 2429971697
BaseRepresentation
bin1001000110101…
…11000111010000
312022201102201011
410203113013100
5124023103301
611325020304
71615131031
oct443270720
9168642634
1076378576
113a12839a
12216b4694
1312a92c31
14a202a88
156a8aa51
hex48d71d0

76378576 has 40 divisors (see below), whose sum is σ = 154755720. Its totient is φ = 36470784.

The previous prime is 76378571. The next prime is 76378579. The reversal of 76378576 is 67587367.

It can be written as a sum of positive squares in 4 ways, for example, as 29811600 + 46566976 = 5460^2 + 6824^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76378571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44160 + ... + 45856.

It is an arithmetic number, because the mean of its divisors is an integer number (3868893).

Almost surely, 276378576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76378576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77377860).

76378576 is an abundant number, since it is smaller than the sum of its proper divisors (78377144).

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

76378576 is a wasteful number, since it uses less digits than its factorization.

76378576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831 (or 1825 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 49.

The square root of 76378576 is about 8739.4837376129. The cubic root of 76378576 is about 424.2845188963.

The spelling of 76378576 in words is "seventy-six million, three hundred seventy-eight thousand, five hundred seventy-six".

Divisors: 1 2 4 8 16 29 58 97 116 194 232 388 464 776 1552 1697 2813 3394 5626 6788 11252 13576 22504 27152 45008 49213 98426 164609 196852 329218 393704 658436 787408 1316872 2633744 4773661 9547322 19094644 38189288 76378576