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232628761 = 192644401
BaseRepresentation
bin11011101110110…
…10001000011001
3121012201202200001
431313122020121
5434023110021
635030013001
75523211651
oct1567321031
9535652601
10232628761
1110a349482
1265aa7161
133926c971
1422c77361
1515652091
hexddda219

232628761 has 6 divisors (see below), whose sum is σ = 245517162. Its totient is φ = 220384800.

The previous prime is 232628729. The next prime is 232628771. The reversal of 232628761 is 167826232.

It can be written as a sum of positive squares in only one way, i.e., 140564736 + 92064025 = 11856^2 + 9595^2 .

It is not a de Polignac number, because 232628761 - 25 = 232628729 is a prime.

It is a super-2 number, since 2×2326287612 = 108232280888790242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 232628761.

It is not an unprimeable number, because it can be changed into a prime (232628701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 321840 + ... + 322561.

It is an arithmetic number, because the mean of its divisors is an integer number (40919527).

Almost surely, 2232628761 is an apocalyptic number.

It is an amenable number.

232628761 is a deficient number, since it is larger than the sum of its proper divisors (12888401).

232628761 is an equidigital number, since it uses as much as digits as its factorization.

232628761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644439 (or 644420 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 232628761 is about 15252.1723370804. The cubic root of 232628761 is about 615.0179658532.

It can be divided in two parts, 23262 and 8761, that added together give a palindrome (32023).

The spelling of 232628761 in words is "two hundred thirty-two million, six hundred twenty-eight thousand, seven hundred sixty-one".

Divisors: 1 19 361 644401 12243619 232628761