Search a number
-
+
253871272 = 23531733461
BaseRepresentation
bin11110010000111…
…00010010101000
3122200200222220201
433020130102220
51004442340042
641105201544
76201604324
oct1710342250
9580628821
10253871272
11120338276
12710302b4
13407997b5
1425a06984
151744b1b7
hexf21c4a8

253871272 has 32 divisors (see below), whose sum is σ = 487934280. Its totient is φ = 123784960.

The previous prime is 253871243. The next prime is 253871281. The reversal of 253871272 is 272178352.

It can be written as a sum of positive squares in 4 ways, for example, as 243796996 + 10074276 = 15614^2 + 3174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71622 + ... + 75082.

Almost surely, 2253871272 is an apocalyptic number.

It is an amenable number.

253871272 is a deficient number, since it is larger than the sum of its proper divisors (234063008).

253871272 is a wasteful number, since it uses less digits than its factorization.

253871272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693 (or 3689 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 253871272 is about 15933.3383821470. The cubic root of 253871272 is about 633.1955484813.

The spelling of 253871272 in words is "two hundred fifty-three million, eight hundred seventy-one thousand, two hundred seventy-two".

Divisors: 1 2 4 8 53 106 173 212 346 424 692 1384 3461 6922 9169 13844 18338 27688 36676 73352 183433 366866 598753 733732 1197506 1467464 2395012 4790024 31733909 63467818 126935636 253871272