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15145214 = 272154543
BaseRepresentation
bin111001110001…
…100011111110
31001111110022212
4321301203332
512334121324
61300340422
7242506100
oct71614376
931443285
1015145214
118604907
1250a4712
1331a3786
142023570
1514e270e
hexe718fe

15145214 has 12 divisors (see below), whose sum is σ = 26427024. Its totient is φ = 6490764.

The previous prime is 15145211. The next prime is 15145217. The reversal of 15145214 is 41254151.

It is an interprime number because it is at equal distance from previous prime (15145211) and next prime (15145217).

It is a self number, because there is not a number n which added to its sum of digits gives 15145214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15145211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77174 + ... + 77369.

It is an arithmetic number, because the mean of its divisors is an integer number (2202252).

Almost surely, 215145214 is an apocalyptic number.

15145214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15145214 is a deficient number, since it is larger than the sum of its proper divisors (11281810).

15145214 is a wasteful number, since it uses less digits than its factorization.

15145214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154559 (or 154552 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 15145214 is about 3891.6852390706. The cubic root of 15145214 is about 247.4144941511.

Adding to 15145214 its reverse (41254151), we get a palindrome (56399365).

The spelling of 15145214 in words is "fifteen million, one hundred forty-five thousand, two hundred fourteen".

Divisors: 1 2 7 14 49 98 154543 309086 1081801 2163602 7572607 15145214