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2168459960 = 23554211499
BaseRepresentation
bin1000000101000000…
…0001001010111000
312121010100011211212
42001100001022320
513420111204320
6555101342252
7104510414462
oct20120011270
95533304755
102168459960
11a13048077
12506267988
1328733a704
14167dcb132
15ca58b9c5
hex814012b8

2168459960 has 16 divisors (see below), whose sum is σ = 4879035000. Its totient is φ = 867383968.

The previous prime is 2168459959. The next prime is 2168459971. The reversal of 2168459960 is 699548612.

It is a junction number, because it is equal to n+sod(n) for n = 2168459899 and 2168459908.

It is a congruent number.

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, 27105710 + ... + 27105789.

Almost surely, 22168459960 is an apocalyptic number.

2168459960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2168459960 is an abundant number, since it is smaller than the sum of its proper divisors (2710575040).

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

2168459960 is a wasteful number, since it uses less digits than its factorization.

2168459960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54211510 (or 54211506 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 2168459960 is about 46566.7258887717. The cubic root of 2168459960 is about 1294.3462480410.

The spelling of 2168459960 in words is "two billion, one hundred sixty-eight million, four hundred fifty-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 54211499 108422998 216845996 271057495 433691992 542114990 1084229980 2168459960