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7828680252 = 2231076097103
BaseRepresentation
bin1110100101010000…
…00010111000111100
3202012121001011101110
413102220002320330
5112013120232002
63332455442020
7365000453451
oct72250027074
922177034343
107828680252
1133580a4388
121625986310
13979bbb1a3
14543a2d828
1530c458e6c
hex1d2a02e3c

7828680252 has 24 divisors (see below), whose sum is σ = 18437642496. Its totient is φ = 2585171248.

The previous prime is 7828680247. The next prime is 7828680253. The reversal of 7828680252 is 2520868287.

It is a super-2 number, since 2×78286802522 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7828680253) 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, 3047268 + ... + 3049835.

It is an arithmetic number, because the mean of its divisors is an integer number (768235104).

Almost surely, 27828680252 is an apocalyptic number.

It is an amenable number.

7828680252 is an abundant number, since it is smaller than the sum of its proper divisors (10608962244).

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

7828680252 is a wasteful number, since it uses less digits than its factorization.

7828680252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6097217 (or 6097215 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The square root of 7828680252 is about 88479.8296336515. The cubic root of 7828680252 is about 1985.6202129816.

The spelling of 7828680252 in words is "seven billion, eight hundred twenty-eight million, six hundred eighty thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 107 214 321 428 642 1284 6097103 12194206 18291309 24388412 36582618 73165236 652390021 1304780042 1957170063 2609560084 3914340126 7828680252