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121253033 = 11233712953
BaseRepresentation
bin1110011101000…
…10110010101001
322110011021220002
413032202302221
5222020044113
620010512345
73001430246
oct716426251
9273137802
10121253033
1162498220
12347356b5
131c175375
14121645cd
15a9a1c58
hex73a2ca9

121253033 has 16 divisors (see below), whose sum is σ = 141768576. Its totient is φ = 102579840.

The previous prime is 121253023. The next prime is 121253039. The reversal of 121253033 is 330352121.

It is not a de Polignac number, because 121253033 - 26 = 121252969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121252996 and 121253014.

It is not an unprimeable number, because it can be changed into a prime (121253039) 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, 2885 + ... + 15837.

It is an arithmetic number, because the mean of its divisors is an integer number (8860536).

Almost surely, 2121253033 is an apocalyptic number.

It is an amenable number.

121253033 is a deficient number, since it is larger than the sum of its proper divisors (20515543).

121253033 is a wasteful number, since it uses less digits than its factorization.

121253033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13024.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 121253033 is about 11011.4954933469. The cubic root of 121253033 is about 494.9532765476.

It can be divided in two parts, 1212 and 53033, that added together give a palindrome (54245).

The spelling of 121253033 in words is "one hundred twenty-one million, two hundred fifty-three thousand, thirty-three".

Divisors: 1 11 23 37 253 407 851 9361 12953 142483 297919 479261 3277109 5271871 11023003 121253033