Search a number
-
+
12122495 = 571123372
BaseRepresentation
bin101110001111…
…100101111111
3211210212221022
4232033211333
511100404440
61111454355
7205016360
oct56174577
924725838
1012122495
11692a8a0
1240873bb
132685998
141877b67
1510e6cb5
hexb8f97f

12122495 has 48 divisors (see below), whose sum is σ = 19450368. Its totient is φ = 7032960.

The previous prime is 12122489. The next prime is 12122497. The reversal of 12122495 is 59422121.

It is not a de Polignac number, because 12122495 - 28 = 12122239 is a prime.

Its product of digits (1440) is a multiple of the sum of its prime factors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 327617 + ... + 327653.

It is an arithmetic number, because the mean of its divisors is an integer number (405216).

Almost surely, 212122495 is an apocalyptic number.

12122495 is a deficient number, since it is larger than the sum of its proper divisors (7327873).

12122495 is a wasteful number, since it uses less digits than its factorization.

12122495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 83 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 12122495 is about 3481.7373536785. The cubic root of 12122495 is about 229.7192225919.

The spelling of 12122495 in words is "twelve million, one hundred twenty-two thousand, four hundred ninety-five".

Divisors: 1 5 7 11 23 35 37 55 77 115 161 185 253 259 385 407 805 851 1265 1295 1369 1771 2035 2849 4255 5957 6845 8855 9361 9583 14245 15059 29785 31487 46805 47915 65527 75295 105413 157435 220409 327635 346357 527065 1102045 1731785 2424499 12122495