Search a number
-
+
29102712 = 2331212613
BaseRepresentation
bin110111100000…
…1001001111000
32000202120102020
41233001021320
524422241322
62515434440
7502240362
oct157011170
960676366
1029102712
1115478331
1298b5a20
13604c752
143c17d32
15284d05c
hex1bc1278

29102712 has 16 divisors (see below), whose sum is σ = 72756840. Its totient is φ = 9700896.

The previous prime is 29102681. The next prime is 29102713. The reversal of 29102712 is 21720192.

It is a super-4 number, since 4×291027124 (a number of 31 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1212613 = 29102712 / (2 + 9 + 1 + 0 + 2 + 7 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29102713) 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, 606283 + ... + 606330.

Almost surely, 229102712 is an apocalyptic number.

It is an amenable number.

29102712 is an abundant number, since it is smaller than the sum of its proper divisors (43654128).

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

29102712 is a wasteful number, since it uses less digits than its factorization.

29102712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212622 (or 1212618 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 29102712 is about 5394.6929477033. The cubic root of 29102712 is about 307.5939722045.

The spelling of 29102712 in words is "twenty-nine million, one hundred two thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 1212613 2425226 3637839 4850452 7275678 9700904 14551356 29102712