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76982436 = 22322138401
BaseRepresentation
bin1001001011010…
…10100010100100
312100212010001100
410211222202210
5124201414221
611350000100
71623224406
oct445524244
9170763040
1076982436
113a500053
1221946030
1312c44a4b
14a31cb76
156b59926
hex496a8a4

76982436 has 18 divisors (see below), whose sum is σ = 194594582. Its totient is φ = 25660800.

The previous prime is 76982431. The next prime is 76982497. The reversal of 76982436 is 63428967.

It can be written as a sum of positive squares in only one way, i.e., 68161536 + 8820900 = 8256^2 + 2970^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 76982391 and 76982400.

It is not an unprimeable number, because it can be changed into a prime (76982431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1069165 + ... + 1069236.

Almost surely, 276982436 is an apocalyptic number.

It is an amenable number.

76982436 is an abundant number, since it is smaller than the sum of its proper divisors (117612146).

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

76982436 is a wasteful number, since it uses less digits than its factorization.

76982436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138411 (or 2138406 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 76982436 is about 8773.9635285314. The cubic root of 76982436 is about 425.3997364795.

The spelling of 76982436 in words is "seventy-six million, nine hundred eighty-two thousand, four hundred thirty-six".

Divisors: 1 2 3 4 6 9 12 18 36 2138401 4276802 6415203 8553604 12830406 19245609 25660812 38491218 76982436