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214933407 = 31337148949
BaseRepresentation
bin11001100111110…
…01111110011111
3112222102202012120
430303321332133
5420010332112
633154434023
75216622003
oct1463717637
9488382176
10214933407
11100362717
125bb92913
13356b5540
142078c703
1513d08e8c
hexccf9f9f

214933407 has 16 divisors (see below), whose sum is σ = 316965600. Its totient is φ = 128691072.

The previous prime is 214933399. The next prime is 214933427. The reversal of 214933407 is 704339412.

It is not a de Polignac number, because 214933407 - 23 = 214933399 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214933427) 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, 73032 + ... + 75917.

It is an arithmetic number, because the mean of its divisors is an integer number (19810350).

Almost surely, 2214933407 is an apocalyptic number.

214933407 is a deficient number, since it is larger than the sum of its proper divisors (102032193).

214933407 is a wasteful number, since it uses less digits than its factorization.

214933407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149002.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 214933407 is about 14660.6073202988. The cubic root of 214933407 is about 599.0107838709.

The spelling of 214933407 in words is "two hundred fourteen million, nine hundred thirty-three thousand, four hundred seven".

Divisors: 1 3 13 37 39 111 481 1443 148949 446847 1936337 5511113 5809011 16533339 71644469 214933407