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707000028 = 223723173793
BaseRepresentation
bin101010001000111…
…111011011011100
31211021100022201020
4222020333123130
52421443000103
6154053244140
723343254400
oct5210773334
91737308636
10707000028
113330a0649
12178933650
13b3620617
1469c7b100
1542106753
hex2a23f6dc

707000028 has 72 divisors (see below), whose sum is σ = 1925561232. Its totient is φ = 201309696.

The previous prime is 707000027. The next prime is 707000053. The reversal of 707000028 is 820000707.

It is a junction number, because it is equal to n+sod(n) for n = 706999971 and 707000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (707000027) 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 23 ways as a sum of consecutive naturals, for example, 184500 + ... + 188292.

It is an arithmetic number, because the mean of its divisors is an integer number (26743906).

Almost surely, 2707000028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 707000028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (962780616).

707000028 is an abundant number, since it is smaller than the sum of its proper divisors (1218561204).

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

707000028 is a wasteful number, since it uses less digits than its factorization.

707000028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131 (or 4122 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 707000028 is about 26589.4721271408. The cubic root of 707000028 is about 890.8538823550.

The spelling of 707000028 in words is "seven hundred seven million, twenty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 317 588 634 951 1268 1902 2219 3793 3804 4438 6657 7586 8876 11379 13314 15172 15533 22758 26551 26628 31066 45516 46599 53102 62132 79653 93198 106204 159306 185857 186396 318612 371714 557571 743428 1115142 1202381 2230284 2404762 3607143 4809524 7214286 8416667 14428572 16833334 25250001 33666668 50500002 58916669 101000004 117833338 176750007 235666676 353500014 707000028