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2472156 = 2232431597
BaseRepresentation
bin1001011011100011011100
311122121011100
421123203130
51113102111
6124553100
730004311
oct11334334
94577140
102472156
111439405
129b2790
1368731b
14484d08
1533c756
hex25b8dc

2472156 has 36 divisors (see below), whose sum is σ = 6398392. Its totient is φ = 804384.

The previous prime is 2472143. The next prime is 2472167. The reversal of 2472156 is 6512742.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×24721562 = 12223110576672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 750 + ... + 2346.

22472156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2472156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3199196).

2472156 is an abundant number, since it is smaller than the sum of its proper divisors (3926236).

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

2472156 is a wasteful number, since it uses less digits than its factorization.

2472156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1645 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2472156 is about 1572.3091299105. The cubic root of 2472156 is about 135.2151302465.

Adding to 2472156 its reverse (6512742), we get a palindrome (8984898).

It can be divided in two parts, 2472 and 156, that added together give a triangular number (2628 = T72).

The spelling of 2472156 in words is "two million, four hundred seventy-two thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 43 86 129 172 258 387 516 774 1548 1597 3194 4791 6388 9582 14373 19164 28746 57492 68671 137342 206013 274684 412026 618039 824052 1236078 2472156