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7490868 = 223711367
BaseRepresentation
bin11100100100110100110100
3112002120112120
4130210310310
53404201433
6424315540
7120446160
oct34446464
915076476
107490868
114257000
122612bb0
131723788
14dcdca0
159ce7b3
hex724d34

7490868 has 96 divisors (see below), whose sum is σ = 22299648. Its totient is φ = 1916640.

The previous prime is 7490851. The next prime is 7490869. The reversal of 7490868 is 8680947.

It is a happy number.

It is a super-2 number, since 2×74908682 = 112226206786848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7490869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111771 + ... + 111837.

It is an arithmetic number, because the mean of its divisors is an integer number (232288).

Almost surely, 27490868 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 7490868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11149824).

7490868 is an abundant number, since it is smaller than the sum of its proper divisors (14808780).

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

7490868 is a wasteful number, since it uses less digits than its factorization.

7490868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 7490868 is about 2736.9450122354. The cubic root of 7490868 is about 195.6639040782.

The spelling of 7490868 in words is "seven million, four hundred ninety thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 67 77 84 121 132 134 154 201 231 242 268 308 363 402 462 469 484 726 737 804 847 924 938 1331 1407 1452 1474 1694 1876 2211 2541 2662 2814 2948 3388 3993 4422 5082 5159 5324 5628 7986 8107 8844 9317 10164 10318 15477 15972 16214 18634 20636 24321 27951 30954 32428 37268 48642 55902 56749 61908 89177 97284 111804 113498 170247 178354 226996 267531 340494 356708 535062 624239 680988 1070124 1248478 1872717 2496956 3745434 7490868