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121452411040 = 2551939951451
BaseRepresentation
bin111000100011100100…
…0001011100010100000
3102121111020010201212221
41301013020023202200
53442213304123130
6131443334400424
711526463313632
oct1610710134240
9377436121787
10121452411040
11475647a1024
121b656200114
13b5b708679c
145c421bca52
15325c74e87a
hex1c4720b8a0

121452411040 has 48 divisors (see below), whose sum is σ = 302032977120. Its totient is φ = 46024070400.

The previous prime is 121452411037. The next prime is 121452411083. The reversal of 121452411040 is 40114254121.

It is a super-2 number, since 2×1214524110402 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121452410996 and 121452411014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19972686 + ... + 19978765.

It is an arithmetic number, because the mean of its divisors is an integer number (6292353690).

Almost surely, 2121452411040 is an apocalyptic number.

121452411040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121452411040 is an abundant number, since it is smaller than the sum of its proper divisors (180580566080).

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

121452411040 is a wasteful number, since it uses less digits than its factorization.

121452411040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39951485 (or 39951477 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 121452411040 its reverse (40114254121), we get a palindrome (161566665161).

The spelling of 121452411040 in words is "one hundred twenty-one billion, four hundred fifty-two million, four hundred eleven thousand, forty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 190 304 380 608 760 1520 3040 39951451 79902902 159805804 199757255 319611608 399514510 639223216 759077569 799029020 1278446432 1518155138 1598058040 3036310276 3196116080 3795387845 6072620552 6392232160 7590775690 12145241104 15181551380 24290482208 30363102760 60726205520 121452411040