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120404412 = 22324771161
BaseRepresentation
bin1110010110100…
…11100110111100
322101120011210200
413023103212330
5221310420122
615540403500
72661264162
oct713234674
9271504720
10120404412
1161a68687
12343a6590
131bc3901b
1411dc3232
15a8855ac
hex72d39bc

120404412 has 36 divisors (see below), whose sum is σ = 310835616. Its totient is φ = 39280320.

The previous prime is 120404377. The next prime is 120404443. The reversal of 120404412 is 214404021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33889 + ... + 37272.

Almost surely, 2120404412 is an apocalyptic number.

120404412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120404412 is an abundant number, since it is smaller than the sum of its proper divisors (190431204).

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

120404412 is a wasteful number, since it uses less digits than its factorization.

120404412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71218 (or 71213 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 120404412 is about 10972.8944221659. The cubic root of 120404412 is about 493.7958856677.

Adding to 120404412 its reverse (214404021), we get a palindrome (334808433).

The spelling of 120404412 in words is "one hundred twenty million, four hundred four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 47 94 141 188 282 423 564 846 1692 71161 142322 213483 284644 426966 640449 853932 1280898 2561796 3344567 6689134 10033701 13378268 20067402 30101103 40134804 60202206 120404412