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1121032430 = 257891031747
BaseRepresentation
bin100001011010001…
…1001100011101110
32220010102100101122
41002310121203232
54243441014210
6303123340542
736531422060
oct10264314356
92803370348
101121032430
11525880291
12273521752
1314b335ccb
14a8c55730
156863cb55
hex42d198ee

1121032430 has 64 divisors (see below), whose sum is σ = 2356024320. Its totient is φ = 376130304.

The previous prime is 1121032399. The next prime is 1121032453. The reversal of 1121032430 is 342301211.

It is a super-2 number, since 2×11210324302 = 2513427418223409800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1121032399 and 1121032408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 640817 + ... + 642563.

It is an arithmetic number, because the mean of its divisors is an integer number (36812880).

Almost surely, 21121032430 is an apocalyptic number.

1121032430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121032430 is an abundant number, since it is smaller than the sum of its proper divisors (1234991890).

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

1121032430 is a wasteful number, since it uses less digits than its factorization.

1121032430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1121032430 is about 33481.8223817044. The cubic root of 1121032430 is about 1038.8178227681.

Adding to 1121032430 its reverse (342301211), we get a palindrome (1463333641).

The spelling of 1121032430 in words is "one billion, one hundred twenty-one million, thirty-two thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 89 103 178 206 445 515 623 721 890 1030 1246 1442 1747 3115 3494 3605 6230 7210 8735 9167 12229 17470 18334 24458 45835 61145 64169 91670 122290 128338 155483 179941 310966 320845 359882 641690 777415 899705 1088381 1259587 1554830 1799410 2176762 2519174 5441905 6297935 10883810 12595870 16014749 32029498 80073745 112103243 160147490 224206486 560516215 1121032430