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1213204432330 = 251111397602931
BaseRepresentation
bin10001101001111000100…
…111101000010111001010
311021222111022011202212201
4101221320213220113022
5124334120313313310
62325201033230414
7153436223345212
oct21517047502712
94258438152781
101213204432330
11428576301590
1217716386240a
138a535136287
1442a100ab242
152185906ee3a
hex11a789e85ca

1213204432330 has 32 divisors (see below), whose sum is σ = 2403374597568. Its totient is φ = 437261126400.

The previous prime is 1213204432303. The next prime is 1213204432393. The reversal of 1213204432330 is 332344023121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48789036 + ... + 48813895.

It is an arithmetic number, because the mean of its divisors is an integer number (75105456174).

Almost surely, 21213204432330 is an apocalyptic number.

1213204432330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213204432330 is a deficient number, since it is larger than the sum of its proper divisors (1190170165238).

1213204432330 is a wasteful number, since it uses less digits than its factorization.

1213204432330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97603062.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 1213204432330 its reverse (332344023121), we get a palindrome (1545548455451).

The spelling of 1213204432330 in words is "one trillion, two hundred thirteen billion, two hundred four million, four hundred thirty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 113 226 565 1130 1243 2486 6215 12430 97602931 195205862 488014655 976029310 1073632241 2147264482 5368161205 10736322410 11029131203 22058262406 55145656015 110291312030 121320443233 242640886466 606602216165 1213204432330