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76600420 = 225131012917
BaseRepresentation
bin1001001000011…
…01010001100100
312100010201000121
410210031101210
5124102203140
611333451324
71620043561
oct444152144
9170121017
1076600420
113a26a036
12217a0b44
1312b3cbc0
14a25d868
156ad164a
hex490d464

76600420 has 48 divisors (see below), whose sum is σ = 175009968. Its totient is φ = 27993600.

The previous prime is 76600393. The next prime is 76600427. The reversal of 76600420 is 2400667.

76600420 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 8 ways, for example, as 11669056 + 64931364 = 3416^2 + 8058^2 .

It is not an unprimeable number, because it can be changed into a prime (76600427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24802 + ... + 27718.

It is an arithmetic number, because the mean of its divisors is an integer number (3646041).

Almost surely, 276600420 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 76600420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87504984).

76600420 is an abundant number, since it is smaller than the sum of its proper divisors (98409548).

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

76600420 is a wasteful number, since it uses less digits than its factorization.

76600420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040 (or 3038 counting only the distinct ones).

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

The square root of 76600420 is about 8752.1665889081. The cubic root of 76600420 is about 424.6949044470.

The spelling of 76600420 in words is "seventy-six million, six hundred thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 101 130 202 260 404 505 1010 1313 2020 2626 2917 5252 5834 6565 11668 13130 14585 26260 29170 37921 58340 75842 151684 189605 294617 379210 589234 758420 1178468 1473085 2946170 3830021 5892340 7660042 15320084 19150105 38300210 76600420