Search a number
-
+
361745420 = 22529623699
BaseRepresentation
bin10101100011111…
…100110000001100
3221012200120102112
4111203330300030
51220101323140
655521243152
711651533241
oct2543746014
9835616375
10361745420
11176217763
12a11934b8
1359c3935a
14360875c8
1521b58c65
hex158fcc0c

361745420 has 24 divisors (see below), whose sum is σ = 785862000. Its totient is φ = 139708352.

The previous prime is 361745413. The next prime is 361745429. The reversal of 361745420 is 24547163.

It is not an unprimeable number, because it can be changed into a prime (361745429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311270 + ... + 312429.

It is an arithmetic number, because the mean of its divisors is an integer number (32744250).

Almost surely, 2361745420 is an apocalyptic number.

It is an amenable number.

361745420 is an abundant number, since it is smaller than the sum of its proper divisors (424116580).

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

361745420 is a wasteful number, since it uses less digits than its factorization.

361745420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623737 (or 623735 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 361745420 is about 19019.6061999191. The cubic root of 361745420 is about 712.5264879862.

The spelling of 361745420 in words is "three hundred sixty-one million, seven hundred forty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 623699 1247398 2494796 3118495 6236990 12473980 18087271 36174542 72349084 90436355 180872710 361745420