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768207828 = 22383771293
BaseRepresentation
bin101101110010011…
…110101111010100
31222112112000000210
4231302132233110
53033130122303
6204121205420
725015441653
oct5562365724
91875460023
10768207828
113646a6a03
12195330870
13c320125b
147405119a
1547697203
hex2dc9ebd4

768207828 has 24 divisors (see below), whose sum is σ = 1814083488. Its totient is φ = 252983776.

The previous prime is 768207827. The next prime is 768207833. The reversal of 768207828 is 828702867.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768207821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384651 + ... + 386642.

It is an arithmetic number, because the mean of its divisors is an integer number (75586812).

Almost surely, 2768207828 is an apocalyptic number.

It is an amenable number.

768207828 is an abundant number, since it is smaller than the sum of its proper divisors (1045875660).

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

768207828 is a wasteful number, since it uses less digits than its factorization.

768207828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771383 (or 771381 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 768207828 is about 27716.5623409542. The cubic root of 768207828 is about 915.8539920340.

It can be divided in two parts, 76820 and 7828, that added together give a palindrome (84648).

The spelling of 768207828 in words is "seven hundred sixty-eight million, two hundred seven thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 83 166 249 332 498 996 771293 1542586 2313879 3085172 4627758 9255516 64017319 128034638 192051957 256069276 384103914 768207828