Search a number
-
+
272147240 = 23531321737
BaseRepresentation
bin10000001110001…
…010001100101000
3200222002111211102
4100032022030220
51024132202430
643001020532
76513133121
oct2016121450
9628074742
10272147240
1112a690282
1277184748
13444c8291
1428203048
1518d5b345
hex1038a328

272147240 has 32 divisors (see below), whose sum is σ = 614315880. Its totient is φ = 108506112.

The previous prime is 272147231. The next prime is 272147263. The reversal of 272147240 is 42741272.

It can be written as a sum of positive squares in 4 ways, for example, as 58461316 + 213685924 = 7646^2 + 14618^2 .

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, 1652 + ... + 23388.

Almost surely, 2272147240 is an apocalyptic number.

272147240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272147240 is an abundant number, since it is smaller than the sum of its proper divisors (342168640).

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

272147240 is a wasteful number, since it uses less digits than its factorization.

272147240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22061 (or 22057 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 272147240 is about 16496.8857667137. The cubic root of 272147240 is about 648.0392510391.

The spelling of 272147240 in words is "two hundred seventy-two million, one hundred forty-seven thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 313 626 1252 1565 2504 3130 6260 12520 21737 43474 86948 108685 173896 217370 434740 869480 6803681 13607362 27214724 34018405 54429448 68036810 136073620 272147240