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20068002 = 2323173517
BaseRepresentation
bin100110010001…
…1011010100010
31101202120010100
41030203122202
520114134002
61554043230
7332401203
oct114433242
941676110
1020068002
1110367429
126879516
134208376
1429455aa
151b6611c
hex13236a2

20068002 has 24 divisors (see below), whose sum is σ = 43630236. Its totient is φ = 6666336.

The previous prime is 20067997. The next prime is 20068003. The reversal of 20068002 is 20086002.

It can be written as a sum of positive squares in 2 ways, for example, as 20061441 + 6561 = 4479^2 + 81^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20068003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3948 + ... + 7464.

Almost surely, 220068002 is an apocalyptic number.

20068002 is an abundant number, since it is smaller than the sum of its proper divisors (23562234).

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

20068002 is a wasteful number, since it uses less digits than its factorization.

20068002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842 (or 3839 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20068002 is about 4479.7323580768. The cubic root of 20068002 is about 271.7490566889.

The spelling of 20068002 in words is "twenty million, sixty-eight thousand, two".

Divisors: 1 2 3 6 9 18 317 634 951 1902 2853 3517 5706 7034 10551 21102 31653 63306 1114889 2229778 3344667 6689334 10034001 20068002