Search a number
-
+
352725989 = 7116768371
BaseRepresentation
bin10101000001100…
…010101111100101
3220120201100002112
4111001202233211
51210244212424
655000050405
711512056440
oct2501425745
9816640075
10352725989
11171117290
129a163a05
13580cbc05
1434bba657
1520e7660e
hex15062be5

352725989 has 16 divisors (see below), whose sum is σ = 446332416. Its totient is φ = 270745200.

The previous prime is 352725977. The next prime is 352726007. The reversal of 352725989 is 989527253.

It is not a de Polignac number, because 352725989 - 28 = 352725733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352725589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29027 + ... + 39344.

It is an arithmetic number, because the mean of its divisors is an integer number (27895776).

Almost surely, 2352725989 is an apocalyptic number.

It is an amenable number.

352725989 is a deficient number, since it is larger than the sum of its proper divisors (93606427).

352725989 is a wasteful number, since it uses less digits than its factorization.

352725989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68456.

The product of its digits is 1360800, while the sum is 50.

The square root of 352725989 is about 18781.0007454342. Note that the first 3 decimals coincide. The cubic root of 352725989 is about 706.5547492702.

The spelling of 352725989 in words is "three hundred fifty-two million, seven hundred twenty-five thousand, nine hundred eighty-nine".

Divisors: 1 7 11 67 77 469 737 5159 68371 478597 752081 4580857 5264567 32065999 50389427 352725989