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1202221412 = 22742936479
BaseRepresentation
bin100011110101000…
…0111000101100100
310002210012011201222
41013222013011210
54430232041122
6315143435512
741535466460
oct10752070544
93083164658
101202221412
11567693817
12296755b98
131620c1622
14b594b4a0
1570828b42
hex47a87164

1202221412 has 12 divisors (see below), whose sum is σ = 2404442880. Its totient is φ = 515237736.

The previous prime is 1202221411. The next prime is 1202221421. The reversal of 1202221412 is 2141222021.

1202221412 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1202221411) 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, 21468212 + ... + 21468267.

It is an arithmetic number, because the mean of its divisors is an integer number (200370240).

Almost surely, 21202221412 is an apocalyptic number.

It is an amenable number.

1202221412 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.

1202221412 is a wasteful number, since it uses less digits than its factorization.

1202221412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42936490 (or 42936488 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1202221412 is about 34673.0646467831. The cubic root of 1202221412 is about 1063.3138878945.

Adding to 1202221412 its reverse (2141222021), we get a palindrome (3343443433).

The spelling of 1202221412 in words is "one billion, two hundred two million, two hundred twenty-one thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 42936479 85872958 171745916 300555353 601110706 1202221412