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763680242 = 21327612969
BaseRepresentation
bin101101100001001…
…101010111110010
31222012222222100102
4231201031113302
53031000231432
6203440152402
724632114003
oct5541152762
91865888312
10763680242
113620942a6
12193908702
13c22a7500
14735d31aa
15470a0962
hex2d84d5f2

763680242 has 24 divisors (see below), whose sum is σ = 1242463860. Its totient is φ = 351886080.

The previous prime is 763680223. The next prime is 763680263. The reversal of 763680242 is 242086367.

It can be written as a sum of positive squares in 6 ways, for example, as 78340201 + 685340041 = 8851^2 + 26179^2 .

It is a junction number, because it is equal to n+sod(n) for n = 763680196 and 763680205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255734 + ... + 258702.

Almost surely, 2763680242 is an apocalyptic number.

763680242 is a deficient number, since it is larger than the sum of its proper divisors (478783618).

763680242 is a wasteful number, since it uses less digits than its factorization.

763680242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3758 (or 3745 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 763680242 is about 27634.7650976085. The cubic root of 763680242 is about 914.0511896214.

It can be divided in two parts, 7636 and 80242, that added together give a palindrome (87878).

The spelling of 763680242 in words is "seven hundred sixty-three million, six hundred eighty thousand, two hundred forty-two".

Divisors: 1 2 13 26 169 338 761 1522 2969 5938 9893 19786 38597 77194 128609 257218 501761 1003522 2259409 4518818 29372317 58744634 381840121 763680242