Search a number
-
+
34720087 = 192379451
BaseRepresentation
bin1000010001110…
…0100101010111
32102022222000011
42010130211113
532342020322
63240101051
7601054513
oct204344527
972288004
1034720087
1118664796
12b764787
13726853c
14487b143
1530ac677
hex211c957

34720087 has 8 divisors (see below), whose sum is σ = 38136960. Its totient is φ = 31462200.

The previous prime is 34720073. The next prime is 34720117. The reversal of 34720087 is 78002743.

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

It is a cyclic number.

It is not a de Polignac number, because 34720087 - 211 = 34718039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34720027) 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, 39289 + ... + 40162.

It is an arithmetic number, because the mean of its divisors is an integer number (4767120).

Almost surely, 234720087 is an apocalyptic number.

34720087 is a deficient number, since it is larger than the sum of its proper divisors (3416873).

34720087 is a wasteful number, since it uses less digits than its factorization.

34720087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79493.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 34720087 is about 5892.3753274889. The cubic root of 34720087 is about 326.2322826704.

The spelling of 34720087 in words is "thirty-four million, seven hundred twenty thousand, eighty-seven".

Divisors: 1 19 23 437 79451 1509569 1827373 34720087