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1972002 = 23328667
BaseRepresentation
bin111100001011100100010
310201012002010
413201130202
51001101002
6110133350
722522164
oct7413442
93635063
101972002
11112765a
127b1256
13540786
14394934
1528e46c
hex1e1722

1972002 has 8 divisors (see below), whose sum is σ = 3944016. Its totient is φ = 657332.

The previous prime is 1971967. The next prime is 1972007. The reversal of 1972002 is 2002791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1972002 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1972002.

It is not an unprimeable number, because it can be changed into a prime (1972007) 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, 164328 + ... + 164339.

It is an arithmetic number, because the mean of its divisors is an integer number (493002).

21972002 is an apocalyptic number.

1972002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1972002 is a wasteful number, since it uses less digits than its factorization.

1972002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328672.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 1972002 is about 1404.2798866323. The cubic root of 1972002 is about 125.4014188566.

Adding to 1972002 its reverse (2002791), we get a palindrome (3974793).

The spelling of 1972002 in words is "one million, nine hundred seventy-two thousand, two".

Divisors: 1 2 3 6 328667 657334 986001 1972002