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1201230342 = 232135133463
BaseRepresentation
bin100011110011001…
…0101001000000110
310002201022211020200
41013212111020012
54430003332332
6315110311330
741524201164
oct10746251006
93081284220
101201230342
11567077154
12296358546
13161b354b0
14b5770234
15706d017c
hex47995206

1201230342 has 24 divisors (see below), whose sum is σ = 2802871344. Its totient is φ = 369609264.

The previous prime is 1201230301. The next prime is 1201230379. The reversal of 1201230342 is 2430321021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2566498 + ... + 2566965.

It is an arithmetic number, because the mean of its divisors is an integer number (116786306).

Almost surely, 21201230342 is an apocalyptic number.

1201230342 is an abundant number, since it is smaller than the sum of its proper divisors (1601641002).

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

1201230342 is a wasteful number, since it uses less digits than its factorization.

1201230342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133484 (or 5133481 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1201230342 is about 34658.7700589620. The cubic root of 1201230342 is about 1063.0216210973.

Adding to 1201230342 its reverse (2430321021), we get a palindrome (3631551363).

The spelling of 1201230342 in words is "one billion, two hundred one million, two hundred thirty thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 5133463 10266926 15400389 30800778 46201167 66735019 92402334 133470038 200205057 400410114 600615171 1201230342