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52626420 = 223257113797
BaseRepresentation
bin1100100011000…
…0001111110100
310200000200212200
43020300033310
5101433021140
65115544500
71206213540
oct310601764
9120020780
1052626420
1127785010
121575b130
13ab979c2
146dbca20
154948030
hex32303f4

52626420 has 144 divisors (see below), whose sum is σ = 199075968. Its totient is φ = 10932480.

The previous prime is 52626401. The next prime is 52626433. The reversal of 52626420 is 2462625.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11962 + ... + 15758.

It is an arithmetic number, because the mean of its divisors is an integer number (1382472).

Almost surely, 252626420 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 52626420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99537984).

52626420 is an abundant number, since it is smaller than the sum of its proper divisors (146449548).

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

52626420 is a wasteful number, since it uses less digits than its factorization.

52626420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830 (or 3825 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 52626420 is about 7254.4069364766. The cubic root of 52626420 is about 374.7439318507.

The spelling of 52626420 in words is "fifty-two million, six hundred twenty-six thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 7 9 10 11 12 14 15 18 20 21 22 28 30 33 35 36 42 44 45 55 60 63 66 70 77 84 90 99 105 110 126 132 140 154 165 180 198 210 220 231 252 308 315 330 385 396 420 462 495 630 660 693 770 924 990 1155 1260 1386 1540 1980 2310 2772 3465 3797 4620 6930 7594 11391 13860 15188 18985 22782 26579 34173 37970 41767 45564 53158 56955 68346 75940 79737 83534 106316 113910 125301 132895 136692 159474 167068 170865 208835 227820 239211 250602 265790 292369 318948 341730 375903 398685 417670 478422 501204 531580 584738 626505 683460 751806 797370 835340 877107 956844 1169476 1196055 1253010 1461845 1503612 1594740 1754214 1879515 2392110 2506020 2631321 2923690 3508428 3759030 4385535 4784220 5262642 5847380 7518060 8771070 10525284 13156605 17542140 26313210 52626420