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1230113232 = 2432233111981
BaseRepresentation
bin100100101010010…
…0000100111010000
310011201200020010100
41021110200213100
510004402110412
6322021332400
742324534645
oct11124404720
93151606110
101230113232
11581404307
122a3b67100
13167b08b6a
14b952bdcc
1572ed7edc
hex495209d0

1230113232 has 120 divisors (see below), whose sum is σ = 3708476928. Its totient is φ = 379526400.

The previous prime is 1230113207. The next prime is 1230113249. The reversal of 1230113232 is 2323110321.

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 (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96682 + ... + 108662.

Almost surely, 21230113232 is an apocalyptic number.

1230113232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230113232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1854238464).

1230113232 is an abundant number, since it is smaller than the sum of its proper divisors (2478363696).

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

1230113232 is a wasteful number, since it uses less digits than its factorization.

1230113232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12049 (or 12040 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1230113232 is about 35072.9701051964. The cubic root of 1230113232 is about 1071.4741471204.

Adding to 1230113232 its reverse (2323110321), we get a palindrome (3553223553).

The spelling of 1230113232 in words is "one billion, two hundred thirty million, one hundred thirteen thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 23 24 31 36 46 48 62 69 72 92 93 124 138 144 184 186 207 248 276 279 368 372 414 496 552 558 713 744 828 1104 1116 1426 1488 1656 2139 2232 2852 3312 4278 4464 5704 6417 8556 11408 11981 12834 17112 23962 25668 34224 35943 47924 51336 71886 95848 102672 107829 143772 191696 215658 275563 287544 371411 431316 551126 575088 742822 826689 862632 1102252 1114233 1485644 1653378 1725264 2204504 2228466 2480067 2971288 3306756 3342699 4409008 4456932 4960134 5942576 6613512 6685398 8542453 8913864 9920268 13227024 13370796 17084906 17827728 19840536 25627359 26741592 34169812 39681072 51254718 53483184 68339624 76882077 102509436 136679248 153764154 205018872 307528308 410037744 615056616 1230113232