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121053012 = 22347713023
BaseRepresentation
bin1110011011100…
…01111101010100
322102210010111220
413031301331110
5221442144022
620002330340
72666635143
oct715617524
9272703456
10121053012
1162370a13
12346599b0
131c105302
141211175a
15a96285c
hex7371f54

121053012 has 48 divisors (see below), whose sum is σ = 292626432. Its totient is φ = 38923360.

The previous prime is 121053001. The next prime is 121053017. The reversal of 121053012 is 210350121.

It is a junction number, because it is equal to n+sod(n) for n = 121052982 and 121053000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121053017) 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, 38533 + ... + 41555.

It is an arithmetic number, because the mean of its divisors is an integer number (6096384).

Almost surely, 2121053012 is an apocalyptic number.

121053012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121053012 is an abundant number, since it is smaller than the sum of its proper divisors (171573420).

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

121053012 is a wasteful number, since it uses less digits than its factorization.

121053012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148 (or 3146 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 121053012 is about 11002.4093724966. The cubic root of 121053012 is about 494.6809657313.

The spelling of 121053012 in words is "one hundred twenty-one million, fifty-three thousand, twelve".

Divisors: 1 2 3 4 6 12 47 71 94 141 142 188 213 282 284 426 564 852 3023 3337 6046 6674 9069 10011 12092 13348 18138 20022 36276 40044 142081 214633 284162 426243 429266 568324 643899 852486 858532 1287798 1704972 2575596 10087751 20175502 30263253 40351004 60526506 121053012