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20150151 = 371756443
BaseRepresentation
bin100110011011…
…1011110000111
31101220201210220
41030313132013
520124301101
61555515423
7333162540
oct114673607
941821726
1020150151
111041311a
1268b8b73
134236888
1429674c7
151b80636
hex1337787

20150151 has 16 divisors (see below), whose sum is σ = 32511744. Its totient is φ = 10836864.

The previous prime is 20150131. The next prime is 20150153. The reversal of 20150151 is 15105102.

It is not a de Polignac number, because 20150151 - 26 = 20150087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20150151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20150153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27865 + ... + 28578.

It is an arithmetic number, because the mean of its divisors is an integer number (2031984).

Almost surely, 220150151 is an apocalyptic number.

20150151 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20150151 is a deficient number, since it is larger than the sum of its proper divisors (12361593).

20150151 is a wasteful number, since it uses less digits than its factorization.

20150151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56470.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 20150151 is about 4488.8919568196. The cubic root of 20150151 is about 272.1193563186.

Adding to 20150151 its reverse (15105102), we get a palindrome (35255253).

It can be divided in two parts, 20150 and 151, that added together give a triangular number (20301 = T201).

The spelling of 20150151 in words is "twenty million, one hundred fifty thousand, one hundred fifty-one".

Divisors: 1 3 7 17 21 51 119 357 56443 169329 395101 959531 1185303 2878593 6716717 20150151