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76140340 = 22531227541
BaseRepresentation
bin1001000100111…
…00111100110100
312022021022220121
410202130330310
5123442442330
611315541324
71613116333
oct442347464
9168238817
1076140340
1139a85401
12215ba844
1312a0b673
14a17dd1a
156a4017a
hex489cf34

76140340 has 48 divisors (see below), whose sum is σ = 166086144. Its totient is φ = 29289600.

The previous prime is 76140319. The next prime is 76140347. The reversal of 76140340 is 4304167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76140347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140470 + ... + 141010.

It is an arithmetic number, because the mean of its divisors is an integer number (3460128).

Almost surely, 276140340 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 76140340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83043072).

76140340 is an abundant number, since it is smaller than the sum of its proper divisors (89945804).

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

76140340 is a wasteful number, since it uses less digits than its factorization.

76140340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 76140340 is about 8725.8432257290. The cubic root of 76140340 is about 423.8429241947.

The spelling of 76140340 in words is "seventy-six million, one hundred forty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 31 62 124 155 227 310 454 541 620 908 1082 1135 2164 2270 2705 4540 5410 7037 10820 14074 16771 28148 33542 35185 67084 70370 83855 122807 140740 167710 245614 335420 491228 614035 1228070 2456140 3807017 7614034 15228068 19035085 38070170 76140340