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1201230234 = 23217237792
BaseRepresentation
bin100011110011001…
…0101000110011010
310002201022211002200
41013212111012122
54430003331414
6315110311030
741524200651
oct10746250632
93081284080
101201230234
11567077066
12296358476
13161b35429
14b5770198
15706d0109
hex4799519a

1201230234 has 108 divisors (see below), whose sum is σ = 2875890654. Its totient is φ = 362029824.

The previous prime is 1201230229. The next prime is 1201230281. The reversal of 1201230234 is 4320321021.

1201230234 is a `hidden beast` number, since 1 + 201 + 230 + 234 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1180953225 + 20277009 = 34365^2 + 4503^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 15205407 + ... + 15205485.

Almost surely, 21201230234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201230234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1437945327).

1201230234 is an abundant number, since it is smaller than the sum of its proper divisors (1674660420).

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

1201230234 is a wasteful number, since it uses less digits than its factorization.

1201230234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 138 counting only the distinct ones).

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

The square root of 1201230234 is about 34658.7685009147. The cubic root of 1201230234 is about 1063.0215892394.

Adding to 1201230234 its reverse (4320321021), we get a palindrome (5521551255).

The spelling of 1201230234 in words is "one billion, two hundred one million, two hundred thirty thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 17 18 34 37 51 74 79 102 111 153 158 222 237 289 306 333 474 578 629 666 711 867 1258 1343 1422 1734 1887 2601 2686 2923 3774 4029 5202 5661 5846 6241 8058 8769 10693 11322 12087 12482 17538 18723 21386 22831 24174 26307 32079 37446 45662 49691 52614 56169 64158 68493 96237 99382 106097 112338 136986 149073 192474 205479 212194 230917 298146 318291 410958 447219 461834 636582 692751 844747 894438 954873 1385502 1689494 1803649 1909746 2078253 2534241 3607298 3925589 4156506 5068482 5410947 7602723 7851178 10821894 11776767 15205446 16232841 23553534 32465682 35330301 66735013 70660602 133470026 200205039 400410078 600615117 1201230234