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67284307960 = 2351682107699
BaseRepresentation
bin111110101010011101…
…010000111111111000
320102200011021222201221
4332222131100333320
52100244240323320
650524320121424
74601240116102
oct765235207770
9212604258657
1067284307960
1126598268491
1211059466274
13646392859c
14338409a572
151b3becb3aa
hexfaa750ff8

67284307960 has 16 divisors (see below), whose sum is σ = 151389693000. Its totient is φ = 26913723168.

The previous prime is 67284307949. The next prime is 67284307969. The reversal of 67284307960 is 6970348276.

It is a super-2 number, since 2×672843079602 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67284307898 and 67284307907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67284307969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841053810 + ... + 841053889.

Almost surely, 267284307960 is an apocalyptic number.

It is an amenable number.

67284307960 is an abundant number, since it is smaller than the sum of its proper divisors (84105385040).

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

67284307960 is a wasteful number, since it uses less digits than its factorization.

67284307960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682107710 (or 1682107706 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 67284307960 in words is "sixty-seven billion, two hundred eighty-four million, three hundred seven thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 1682107699 3364215398 6728430796 8410538495 13456861592 16821076990 33642153980 67284307960