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1213203002 = 21155145591
BaseRepresentation
bin100100001010000…
…0000001000111010
310010112212002122112
41020110000020322
54441034444002
6320215052322
742031024664
oct11024001072
93115762575
101213203002
11572904410
1229a3710a2
13164467bcb
14b71a9534
1571797852
hex4850023a

1213203002 has 8 divisors (see below), whose sum is σ = 1985241312. Its totient is φ = 551455900.

The previous prime is 1213202993. The next prime is 1213203031. The reversal of 1213203002 is 2003023121.

It is a happy number.

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

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, 27572774 + ... + 27572817.

It is an arithmetic number, because the mean of its divisors is an integer number (248155164).

Almost surely, 21213203002 is an apocalyptic number.

1213203002 is a deficient number, since it is larger than the sum of its proper divisors (772038310).

1213203002 is a wasteful number, since it uses less digits than its factorization.

1213203002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55145604.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1213203002 is about 34831.0637506235. The cubic root of 1213203002 is about 1066.5416634547.

Adding to 1213203002 its reverse (2003023121), we get a palindrome (3216226123).

The spelling of 1213203002 in words is "one billion, two hundred thirteen million, two hundred three thousand, two".

Divisors: 1 2 11 22 55145591 110291182 606601501 1213203002