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56212461 = 3725703
BaseRepresentation
bin1101011001101…
…1101111101101
310220202220000000
43112123233231
5103342244321
65324454513
71251540504
oct326335755
9126686000
1056212461
1129804288
12169aa439
13b852016
14767383b
154e05826
hex359bbed

56212461 has 16 divisors (see below), whose sum is σ = 84309120. Its totient is φ = 37473516.

The previous prime is 56212451. The next prime is 56212463. The reversal of 56212461 is 16421265.

It is not a de Polignac number, because 56212461 - 219 = 55688173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56212463) 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, 10665 + ... + 15038.

It is an arithmetic number, because the mean of its divisors is an integer number (5269320).

Almost surely, 256212461 is an apocalyptic number.

It is an amenable number.

56212461 is a deficient number, since it is larger than the sum of its proper divisors (28096659).

56212461 is an frugal number, since it uses more digits than its factorization.

56212461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25724 (or 25706 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 56212461 is about 7497.4969823268. The cubic root of 56212461 is about 383.0694631853.

The spelling of 56212461 in words is "fifty-six million, two hundred twelve thousand, four hundred sixty-one".

Divisors: 1 3 9 27 81 243 729 2187 25703 77109 231327 693981 2081943 6245829 18737487 56212461