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68402052 = 223219100003
BaseRepresentation
bin1000001001110…
…11101110000100
311202201011222100
410010323232010
5120002331202
610442032100
71460256615
oct404735604
9152634870
1068402052
113567a524
121aaa8630
131122c3b4
149127c0c
15601241c
hex413bb84

68402052 has 36 divisors (see below), whose sum is σ = 182007280. Its totient is φ = 21600432.

The previous prime is 68402051. The next prime is 68402053. The reversal of 68402052 is 25020486.

68402052 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (68402051) and next prime (68402053).

It is a tau number, because it is divible by the number of its divisors (36).

68402052 is a modest number, since divided by 2052 gives 684 as remainder.

68402052 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (68402051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49318 + ... + 50685.

Almost surely, 268402052 is an apocalyptic number.

It is an amenable number.

68402052 is an abundant number, since it is smaller than the sum of its proper divisors (113605228).

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

68402052 is a wasteful number, since it uses less digits than its factorization.

68402052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100032 (or 100027 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 68402052 is about 8270.5533067625. The cubic root of 68402052 is about 408.9683601678.

The spelling of 68402052 in words is "sixty-eight million, four hundred two thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 100003 200006 300009 400012 600018 900027 1200036 1800054 1900057 3600108 3800114 5700171 7600228 11400342 17100513 22800684 34201026 68402052