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7253149690 = 2529412712251
BaseRepresentation
bin1101100000101001…
…00100011111111010
3200201111002011212201
412300110210133322
5104323301242230
63155420100414
7344511520003
oct66024443772
920644064781
107253149690
113092239796
1214a509470a
138b78ac167
144cb4161aa
152c6b715ca
hex1b05247fa

7253149690 has 64 divisors (see below), whose sum is σ = 13892497920. Its totient is φ = 2721600000.

The previous prime is 7253149669. The next prime is 7253149691. The reversal of 7253149690 is 969413527.

It is a happy number.

It is a super-2 number, since 2×72531496902 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7253149690.

It is not an unprimeable number, because it can be changed into a prime (7253149691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3221065 + ... + 3223315.

It is an arithmetic number, because the mean of its divisors is an integer number (217070280).

Almost surely, 27253149690 is an apocalyptic number.

7253149690 is a deficient number, since it is larger than the sum of its proper divisors (6639348230).

7253149690 is a wasteful number, since it uses less digits than its factorization.

7253149690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2599.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 7253149690 is about 85165.4254377914. The cubic root of 7253149690 is about 1935.7185570104.

It can be divided in two parts, 72531 and 49690, that added together give a palindrome (122221).

The spelling of 7253149690 in words is "seven billion, two hundred fifty-three million, one hundred forty-nine thousand, six hundred ninety".

Divisors: 1 2 5 10 29 41 58 82 145 205 271 290 410 542 1189 1355 2251 2378 2710 4502 5945 7859 11111 11255 11890 15718 22222 22510 39295 55555 65279 78590 92291 111110 130558 184582 322219 326395 461455 610021 644438 652790 922910 1220042 1611095 2676439 3050105 3222190 5352878 6100210 13382195 17690609 25010861 26764390 35381218 50021722 88453045 125054305 176906090 250108610 725314969 1450629938 3626574845 7253149690