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56106490 = 2511289521
BaseRepresentation
bin1101011000000…
…1110111111010
310220120111122011
43112001313322
5103330401430
65322320134
71250616526
oct326016772
9126514564
1056106490
1129741700
121695904a
13b815a0b
147646d86
154dd422a
hex3581dfa

56106490 has 48 divisors (see below), whose sum is σ = 112470120. Its totient is φ = 20134400.

The previous prime is 56106481. The next prime is 56106493. The reversal of 56106490 is 9460165.

It can be written as a sum of positive squares in 4 ways, for example, as 30614089 + 25492401 = 5533^2 + 5049^2 .

It is not an unprimeable number, because it can be changed into a prime (56106493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107430 + ... + 107950.

Almost surely, 256106490 is an apocalyptic number.

56106490 is an abundant number, since it is smaller than the sum of its proper divisors (56363630).

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

56106490 is a wasteful number, since it uses less digits than its factorization.

56106490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 56106490 is about 7490.4265566121. The cubic root of 56106490 is about 382.8285925708.

It can be divided in two parts, 5610 and 6490, that added together give a square (12100 = 1102).

The spelling of 56106490 in words is "fifty-six million, one hundred six thousand, four hundred ninety".

Divisors: 1 2 5 10 11 22 55 89 110 121 178 242 445 521 605 890 979 1042 1210 1958 2605 4895 5210 5731 9790 10769 11462 21538 28655 46369 53845 57310 63041 92738 107690 126082 231845 315205 463690 510059 630410 1020118 2550295 5100590 5610649 11221298 28053245 56106490