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121132030 = 25192353523
BaseRepresentation
bin1110011100001…
…01001111111110
322102221010220111
413032011033332
5222002211110
620004140234
73000414415
oct716051776
9272833814
10121132030
1162415318
123469767a
131c132276
141213247c
15a97ae8a
hex73853fe

121132030 has 64 divisors (see below), whose sum is σ = 244477440. Its totient is φ = 42996096.

The previous prime is 121132003. The next prime is 121132051. The reversal of 121132030 is 30231121.

It is a self number, because there is not a number n which added to its sum of digits gives 121132030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231349 + ... + 231871.

It is an arithmetic number, because the mean of its divisors is an integer number (3819960).

Almost surely, 2121132030 is an apocalyptic number.

121132030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121132030 is an abundant number, since it is smaller than the sum of its proper divisors (123345410).

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

121132030 is a wasteful number, since it uses less digits than its factorization.

121132030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121132030 is about 11005.9997274214. Note that the first 3 decimals coincide. The cubic root of 121132030 is about 494.7885775339.

Adding to 121132030 its reverse (30231121), we get a palindrome (151363151).

Subtracting from 121132030 its reverse (30231121), we obtain a palindrome (90900909).

The spelling of 121132030 in words is "one hundred twenty-one million, one hundred thirty-two thousand, thirty".

Divisors: 1 2 5 10 19 23 38 46 53 95 106 115 190 230 265 437 523 530 874 1007 1046 1219 2014 2185 2438 2615 4370 5035 5230 6095 9937 10070 12029 12190 19874 23161 24058 27719 46322 49685 55438 60145 99370 115805 120290 138595 228551 231610 277190 457102 526661 637537 1053322 1142755 1275074 2285510 2633305 3187685 5266610 6375370 12113203 24226406 60566015 121132030