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4780172 = 221962897
BaseRepresentation
bin10010001111000010001100
322222212011102
4102033002030
52210431142
6250242232
755426235
oct22170214
98885142
104780172
112775461
121726378
13cb4a07
148c608c
15646532
hex48f08c

4780172 has 12 divisors (see below), whose sum is σ = 8805720. Its totient is φ = 2264256.

The previous prime is 4780151. The next prime is 4780177. The reversal of 4780172 is 2710874.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4780177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31373 + ... + 31524.

It is an arithmetic number, because the mean of its divisors is an integer number (733810).

Almost surely, 24780172 is an apocalyptic number.

It is an amenable number.

4780172 is a deficient number, since it is larger than the sum of its proper divisors (4025548).

4780172 is a wasteful number, since it uses less digits than its factorization.

4780172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62920 (or 62918 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 4780172 is about 2186.3604460381. The cubic root of 4780172 is about 168.4539405142.

The spelling of 4780172 in words is "four million, seven hundred eighty thousand, one hundred seventy-two".

Divisors: 1 2 4 19 38 76 62897 125794 251588 1195043 2390086 4780172