Search a number
-
+
270205641 = 3231968479
BaseRepresentation
bin10000000110110…
…000001011001001
3200211102212110100
4100012300023021
51023133040031
642451240013
76460465356
oct2006601311
9624385410
10270205641
11129584552
12765a9009
1343c985c4
1427c5962d
1518ac5de6
hex101b02c9

270205641 has 12 divisors (see below), whose sum is σ = 402887680. Its totient is φ = 174326040.

The previous prime is 270205627. The next prime is 270205681. The reversal of 270205641 is 146502072.

It is not a de Polignac number, because 270205641 - 25 = 270205609 is a prime.

It is a super-2 number, since 2×2702056412 = 146022176856441762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (270205681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 483961 + ... + 484518.

Almost surely, 2270205641 is an apocalyptic number.

It is an amenable number.

270205641 is a deficient number, since it is larger than the sum of its proper divisors (132682039).

270205641 is a wasteful number, since it uses less digits than its factorization.

270205641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968516 (or 968513 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 270205641 is about 16437.9329904949. The cubic root of 270205641 is about 646.4944542961.

The spelling of 270205641 in words is "two hundred seventy million, two hundred five thousand, six hundred forty-one".

Divisors: 1 3 9 31 93 279 968479 2905437 8716311 30022849 90068547 270205641