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380724652 = 227115383281
BaseRepresentation
bin10110101100010…
…110010110101100
3222112101211001001
4112230112112230
51234431142102
6101440130044
712302051260
oct2654262654
9875354031
10380724652
11185a00080
12a7606924
1360b52c79
14387c80a0
1523657487
hex16b165ac

380724652 has 96 divisors (see below), whose sum is σ = 859590144. Its totient is φ = 143270400.

The previous prime is 380724613. The next prime is 380724653. The reversal of 380724652 is 256427083.

It is a super-2 number, since 2×3807246522 = 289902521281042208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (380724653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1354752 + ... + 1355032.

It is an arithmetic number, because the mean of its divisors is an integer number (8954064).

Almost surely, 2380724652 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 380724652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429795072).

380724652 is an abundant number, since it is smaller than the sum of its proper divisors (478865492).

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

380724652 is a wasteful number, since it uses less digits than its factorization.

380724652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 380724652 is about 19512.1667684550. The cubic root of 380724652 is about 724.7757702129.

It can be divided in two parts, 38072 and 4652, that added together give a palindrome (42724).

The spelling of 380724652 in words is "three hundred eighty million, seven hundred twenty-four thousand, six hundred fifty-two".

Divisors: 1 2 4 7 11 14 22 28 44 53 77 83 106 154 166 212 281 308 332 371 562 581 583 742 913 1124 1162 1166 1484 1826 1967 2324 2332 3091 3652 3934 4081 4399 6182 6391 7868 8162 8798 12364 12782 14893 16324 17596 21637 23323 25564 29786 30793 43274 46646 48389 59572 61586 86548 93292 96778 104251 123172 163261 163823 193556 208502 256553 326522 327646 338723 417004 513106 653044 655292 677446 1026212 1146761 1236119 1354892 1795871 2293522 2472238 3591742 4587044 4944476 7183484 8652833 13597309 17305666 27194618 34611332 54389236 95181163 190362326 380724652