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214077972 = 22317839831
BaseRepresentation
bin11001100001010…
…01001000010100
3112220211021202210
430300221020110
5414300443342
633124233420
75206430013
oct1460511024
9486737683
10214077972
11aa928a49
125b83b870
1335476074
1420608a7a
1513bda79c
hexcc29214

214077972 has 12 divisors (see below), whose sum is σ = 499515296. Its totient is φ = 71359320.

The previous prime is 214077947. The next prime is 214077977. The reversal of 214077972 is 279770412.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 214077972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214077977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8919904 + ... + 8919927.

Almost surely, 2214077972 is an apocalyptic number.

It is an amenable number.

214077972 is an abundant number, since it is smaller than the sum of its proper divisors (285437324).

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

214077972 is a wasteful number, since it uses less digits than its factorization.

214077972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17839838 (or 17839836 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 214077972 is about 14631.4036237129. The cubic root of 214077972 is about 598.2150395707.

The spelling of 214077972 in words is "two hundred fourteen million, seventy-seven thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 17839831 35679662 53519493 71359324 107038986 214077972