Search a number
-
+
47274261 = 3195571489
BaseRepresentation
bin1011010001010…
…1100100010101
310021221210002120
42310111210111
544100234021
64405130153
71112552556
oct264254425
9107853076
1047274261
1124759941
12139b9959
139a42848
1463c832d
15423c2c6
hex2d15915

47274261 has 16 divisors (see below), whose sum is σ = 66513600. Its totient is φ = 29783808.

The previous prime is 47274259. The next prime is 47274313. The reversal of 47274261 is 16247274.

It is not a de Polignac number, because 47274261 - 21 = 47274259 is a prime.

It is a super-2 number, since 2×472742612 = 4469711506192242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47274221) 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, 31005 + ... + 32493.

It is an arithmetic number, because the mean of its divisors is an integer number (4157100).

Almost surely, 247274261 is an apocalyptic number.

It is an amenable number.

47274261 is a deficient number, since it is larger than the sum of its proper divisors (19239339).

47274261 is a wasteful number, since it uses less digits than its factorization.

47274261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068.

The product of its digits is 18816, while the sum is 33.

The square root of 47274261 is about 6875.6280440408. The cubic root of 47274261 is about 361.5832046597.

The spelling of 47274261 in words is "forty-seven million, two hundred seventy-four thousand, two hundred sixty-one".

Divisors: 1 3 19 57 557 1489 1671 4467 10583 28291 31749 84873 829373 2488119 15758087 47274261