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768306148 = 221731110269
BaseRepresentation
bin101101110010110…
…110101111100100
31222112200222220021
4231302312233210
53033141244043
6204123244524
725016331421
oct5562665744
91875628807
10768306148
11364763865
12195379744
13c3236c2c
1474078d48
15476b63ed
hex2dcb6be4

768306148 has 12 divisors (see below), whose sum is σ = 1352308860. Its totient is φ = 381932192.

The previous prime is 768306131. The next prime is 768306151. The reversal of 768306148 is 841603867.

It can be written as a sum of positive squares in 2 ways, for example, as 633931684 + 134374464 = 25178^2 + 11592^2 .

It is a super-3 number, since 3×7683061483 (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554443 + ... + 555826.

It is an arithmetic number, because the mean of its divisors is an integer number (112692405).

Almost surely, 2768306148 is an apocalyptic number.

It is an amenable number.

768306148 is a deficient number, since it is larger than the sum of its proper divisors (584002712).

768306148 is a wasteful number, since it uses less digits than its factorization.

768306148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110446 (or 1110444 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 768306148 is about 27718.3359529392. The cubic root of 768306148 is about 915.8930625910.

It can be divided in two parts, 768 and 306148, that added together give a square (306916 = 5542).

The spelling of 768306148 in words is "seven hundred sixty-eight million, three hundred six thousand, one hundred forty-eight".

Divisors: 1 2 4 173 346 692 1110269 2220538 4441076 192076537 384153074 768306148