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4780056 = 2331511319
BaseRepresentation
bin10010001111000000011000
322222212000010
4102033000120
52210430211
6250241520
755426011
oct22170030
98885003
104780056
112775366
1217262a0
13cb4948
148c6008
156464a6
hex48f018

4780056 has 32 divisors (see below), whose sum is σ = 12038400. Its totient is φ = 1581600.

The previous prime is 4780051. The next prime is 4780079. The reversal of 4780056 is 6500874.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4780051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2965 + ... + 4283.

It is an arithmetic number, because the mean of its divisors is an integer number (376200).

Almost surely, 24780056 is an apocalyptic number.

It is an amenable number.

4780056 is an abundant number, since it is smaller than the sum of its proper divisors (7258344).

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

4780056 is a wasteful number, since it uses less digits than its factorization.

4780056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1475 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 4780056 is about 2186.3339177719. Note that the first 3 decimals coincide. The cubic root of 4780056 is about 168.4525778843.

The spelling of 4780056 in words is "four million, seven hundred eighty thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 24 151 302 453 604 906 1208 1319 1812 2638 3624 3957 5276 7914 10552 15828 31656 199169 398338 597507 796676 1195014 1593352 2390028 4780056