Search a number
-
+
214012731 = 3106966733
BaseRepresentation
bin11001100000110…
…01001100111011
3112220200222021110
430300121030323
5414241401411
633123011403
75206035552
oct1460311473
9486628243
10214012731
11aa893a29
125b809b63
133545246a
14205ccd99
1513bc62a6
hexcc1933b

214012731 has 8 divisors (see below), whose sum is σ = 285621520. Its totient is φ = 142539552.

The previous prime is 214012717. The next prime is 214012739. The reversal of 214012731 is 137210412.

214012731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 214012731 - 218 = 213750587 is a prime.

It is a super-2 number, since 2×2140127312 = 91602898060156722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214012698 and 214012707.

It is not an unprimeable number, because it can be changed into a prime (214012739) 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, 30160 + ... + 36573.

It is an arithmetic number, because the mean of its divisors is an integer number (35702690).

Almost surely, 2214012731 is an apocalyptic number.

214012731 is a deficient number, since it is larger than the sum of its proper divisors (71608789).

214012731 is a wasteful number, since it uses less digits than its factorization.

214012731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67805.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 214012731 is about 14629.1739684782. The cubic root of 214012731 is about 598.1542640312.

The spelling of 214012731 in words is "two hundred fourteen million, twelve thousand, seven hundred thirty-one".

Divisors: 1 3 1069 3207 66733 200199 71337577 214012731