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1220202002 = 21932110579
BaseRepresentation
bin100100010111010…
…1100111000010010
310011001000200110202
41020232230320102
54444332431002
6321025055202
742144355145
oct11056547022
93131020422
101220202002
11576854908
122a0787502
13165a48826
14b80ac05c
15721cb502
hex48bace12

1220202002 has 8 divisors (see below), whose sum is σ = 1926634800. Its totient is φ = 577990404.

The previous prime is 1220202001. The next prime is 1220202031. The reversal of 1220202002 is 2002020221.

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

It is not an unprimeable number, because it can be changed into a prime (1220202001) 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, 16055252 + ... + 16055327.

It is an arithmetic number, because the mean of its divisors is an integer number (240829350).

Almost surely, 21220202002 is an apocalyptic number.

1220202002 is a deficient number, since it is larger than the sum of its proper divisors (706432798).

1220202002 is a wasteful number, since it uses less digits than its factorization.

1220202002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32110600.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1220202002 is about 34931.3899236775. The cubic root of 1220202002 is about 1068.5887009770.

Adding to 1220202002 its reverse (2002020221), we get a palindrome (3222222223).

The spelling of 1220202002 in words is "one billion, two hundred twenty million, two hundred two thousand, two".

Divisors: 1 2 19 38 32110579 64221158 610101001 1220202002