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828288156 = 22369024013
BaseRepresentation
bin110001010111101…
…010110010011100
32010201120101202010
4301113222302130
53144020210111
6214105031220
726345222163
oct6127526234
92121511663
10828288156
11395602173
121b1485510
131027a8947
147c0103da
154cab3aa6
hex315eac9c

828288156 has 12 divisors (see below), whose sum is σ = 1932672392. Its totient is φ = 276096048.

The previous prime is 828288151. The next prime is 828288157. The reversal of 828288156 is 651882828.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8282881562 = 1372122538739760672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828288151) 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, 34511995 + ... + 34512018.

Almost surely, 2828288156 is an apocalyptic number.

It is an amenable number.

828288156 is an abundant number, since it is smaller than the sum of its proper divisors (1104384236).

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

828288156 is a wasteful number, since it uses less digits than its factorization.

828288156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69024020 (or 69024018 counting only the distinct ones).

The product of its digits is 491520, while the sum is 48.

The square root of 828288156 is about 28779.9957609448. The cubic root of 828288156 is about 939.1331060083.

The spelling of 828288156 in words is "eight hundred twenty-eight million, two hundred eighty-eight thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 12 69024013 138048026 207072039 276096052 414144078 828288156