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56201400 = 23325231223
BaseRepresentation
bin1101011001100…
…1000010111000
310220202022211100
43112121002320
5103341421100
65324331400
71251463323
oct326310270
9126668740
1056201400
11297a6a42
12169a3b60
13b849c88
14766d7ba
154e02400
hex35990b8

56201400 has 72 divisors (see below), whose sum is σ = 188749080. Its totient is φ = 14986560.

The previous prime is 56201377. The next prime is 56201413. The reversal of 56201400 is 410265.

It is a happy number.

56201400 is a `hidden beast` number, since 5 + 620 + 1 + 40 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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 17 ways as a sum of consecutive naturals, for example, 13812 + ... + 17411.

It is an arithmetic number, because the mean of its divisors is an integer number (2621515).

Almost surely, 256201400 is an apocalyptic number.

56201400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56201400 is an abundant number, since it is smaller than the sum of its proper divisors (132547680).

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

56201400 is a wasteful number, since it uses less digits than its factorization.

56201400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31245 (or 31233 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 56201400 is about 7496.7592998575. The cubic root of 56201400 is about 383.0443358429.

Adding to 56201400 its reverse (410265), we get a palindrome (56611665).

The spelling of 56201400 in words is "fifty-six million, two hundred one thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 30 36 40 45 50 60 72 75 90 100 120 150 180 200 225 300 360 450 600 900 1800 31223 62446 93669 124892 156115 187338 249784 281007 312230 374676 468345 562014 624460 749352 780575 936690 1124028 1248920 1405035 1561150 1873380 2248056 2341725 2810070 3122300 3746760 4683450 5620140 6244600 7025175 9366900 11240280 14050350 18733800 28100700 56201400