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7728052 = 223162323
BaseRepresentation
bin11101011110101110110100
3112112121220011
4131132232310
53434244202
6433350004
7122454523
oct35365664
915477804
107728052
1143a9222
122708304
1317a7717
1410524ba
15a29bd7
hex75ebb4

7728052 has 12 divisors (see below), whose sum is σ = 13960576. Its totient is φ = 3739320.

The previous prime is 7728043. The next prime is 7728053. The reversal of 7728052 is 2508277.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7728053) 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, 31038 + ... + 31285.

Almost surely, 27728052 is an apocalyptic number.

It is an amenable number.

7728052 is a deficient number, since it is larger than the sum of its proper divisors (6232524).

7728052 is a wasteful number, since it uses less digits than its factorization.

7728052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62358 (or 62356 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 7728052 is about 2779.9374093673. The cubic root of 7728052 is about 197.7075913711.

The spelling of 7728052 in words is "seven million, seven hundred twenty-eight thousand, fifty-two".

Divisors: 1 2 4 31 62 124 62323 124646 249292 1932013 3864026 7728052