Search a number
-
+
487493028 = 2232112111913
BaseRepresentation
bin11101000011101…
…000110110100100
31020222022012201100
4131003220312210
51444244234103
6120212400100
715036423321
oct3503506644
91228265640
10487493028
112301a4800
12117316030
1379cc6419
1448a5bb48
152cbe75a3
hex1d0e8da4

487493028 has 54 divisors (see below), whose sum is σ = 1354495142. Its totient is φ = 147723840.

The previous prime is 487493009. The next prime is 487493047. The reversal of 487493028 is 820394784.

It is an interprime number because it is at equal distance from previous prime (487493009) and next prime (487493047).

It can be written as a sum of positive squares in only one way, i.e., 483032484 + 4460544 = 21978^2 + 2112^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51601 + ... + 60312.

Almost surely, 2487493028 is an apocalyptic number.

It is an amenable number.

487493028 is an abundant number, since it is smaller than the sum of its proper divisors (867002114).

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

487493028 is a wasteful number, since it uses less digits than its factorization.

487493028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111945 (or 111929 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 487493028 is about 22079.2442805455. The cubic root of 487493028 is about 787.0267063824.

The spelling of 487493028 in words is "four hundred eighty-seven million, four hundred ninety-three thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 121 132 198 242 363 396 484 726 1089 1452 2178 4356 111913 223826 335739 447652 671478 1007217 1231043 1342956 2014434 2462086 3693129 4028868 4924172 7386258 11079387 13541473 14772516 22158774 27082946 40624419 44317548 54165892 81248838 121873257 162497676 243746514 487493028