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121023232 = 281123907
BaseRepresentation
bin1110011011010…
…10101100000000
322102201121122221
413031222230000
5221440220412
620001540424
72666452261
oct715525400
9272647587
10121023232
1162350600
1234644714
131c0c48a5
1412104968
15a958b07
hex736ab00

121023232 has 54 divisors (see below), whose sum is σ = 265599404. Its totient is φ = 54996480.

The previous prime is 121023209. The next prime is 121023257. The reversal of 121023232 is 232320121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29023 + ... + 32929.

Almost surely, 2121023232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121023232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132799702).

121023232 is an abundant number, since it is smaller than the sum of its proper divisors (144576172).

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

121023232 is an equidigital number, since it uses as much as digits as its factorization.

121023232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945 (or 3920 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 121023232 is about 11001.0559493169. The cubic root of 121023232 is about 494.6403972588.

Adding to 121023232 its reverse (232320121), we get a palindrome (353343353).

It can be divided in two parts, 1210 and 23232, that added together give a palindrome (24442).

The spelling of 121023232 in words is "one hundred twenty-one million, twenty-three thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 121 128 176 242 256 352 484 704 968 1408 1936 2816 3872 3907 7744 7814 15488 15628 30976 31256 42977 62512 85954 125024 171908 250048 343816 472747 500096 687632 945494 1000192 1375264 1890988 2750528 3781976 5501056 7563952 11002112 15127904 30255808 60511616 121023232