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121430052455 = 5149162993359
BaseRepresentation
bin111000100010111001…
…0111000111001100111
3102121102200001210200012
41301011302320321213
53442142043134310
6131441215240435
711526102262355
oct1610562707147
9377380053605
10121430052455
114755310a758
121b64a81911b
13b5b255895a
145c3d23c7d5
15325a7d4c05
hex1c45cb8e67

121430052455 has 8 divisors (see below), whose sum is σ = 146694024000. Its totient is φ = 96492067936.

The previous prime is 121430052449. The next prime is 121430052463. The reversal of 121430052455 is 554250034121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121430052455 - 214 = 121430036071 is a prime.

It is a congruent number.

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, 81495935 + ... + 81497424.

It is an arithmetic number, because the mean of its divisors is an integer number (18336753000).

Almost surely, 2121430052455 is an apocalyptic number.

121430052455 is a deficient number, since it is larger than the sum of its proper divisors (25263971545).

121430052455 is a wasteful number, since it uses less digits than its factorization.

121430052455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162993513.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 121430052455 its reverse (554250034121), we get a palindrome (675680086576).

The spelling of 121430052455 in words is "one hundred twenty-one billion, four hundred thirty million, fifty-two thousand, four hundred fifty-five".

Divisors: 1 5 149 745 162993359 814966795 24286010491 121430052455