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1230142430 = 251116076959
BaseRepresentation
bin100100101010010…
…0111101111011110
310011201201201011202
41021110213233132
510004404024210
6322022115502
742325016036
oct11124475736
93151651152
101230142430
11581424240
122a3b7bb92
13167b1923a
14b95388c6
1572ee19a5
hex49527bde

1230142430 has 32 divisors (see below), whose sum is σ = 2417402880. Its totient is φ = 446981920.

The previous prime is 1230142399. The next prime is 1230142439. The reversal of 1230142430 is 342410321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230142439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173291 + ... + 180249.

It is an arithmetic number, because the mean of its divisors is an integer number (75543840).

Almost surely, 21230142430 is an apocalyptic number.

1230142430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230142430 is a deficient number, since it is larger than the sum of its proper divisors (1187260450).

1230142430 is a wasteful number, since it uses less digits than its factorization.

1230142430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8584.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1230142430 is about 35073.3863491965. The cubic root of 1230142430 is about 1071.4826245661.

Adding to 1230142430 its reverse (342410321), we get a palindrome (1572552751).

The spelling of 1230142430 in words is "one billion, two hundred thirty million, one hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 1607 3214 6959 8035 13918 16070 17677 34795 35354 69590 76549 88385 153098 176770 382745 765490 11183113 22366226 55915565 111831130 123014243 246028486 615071215 1230142430