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28612150 = 252781749
BaseRepresentation
bin110110100100…
…1011000110110
31222211122111021
41231021120312
524311042100
62501131354
7465125230
oct155113066
958748437
1028612150
1115172806
1296b9b5a
135c0a388
143b2b250
1527a2a1a
hex1b49636

28612150 has 24 divisors (see below), whose sum is σ = 60822000. Its totient is φ = 9809760.

The previous prime is 28612147. The next prime is 28612153. The reversal of 28612150 is 5121682.

It is an interprime number because it is at equal distance from previous prime (28612147) and next prime (28612153).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28612153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40525 + ... + 41224.

It is an arithmetic number, because the mean of its divisors is an integer number (2534250).

Almost surely, 228612150 is an apocalyptic number.

28612150 is an abundant number, since it is smaller than the sum of its proper divisors (32209850).

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

28612150 is a wasteful number, since it uses less digits than its factorization.

28612150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81768 (or 81763 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 28612150 is about 5349.0326228207. The cubic root of 28612150 is about 305.8558778498.

The spelling of 28612150 in words is "twenty-eight million, six hundred twelve thousand, one hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 81749 163498 408745 572243 817490 1144486 2043725 2861215 4087450 5722430 14306075 28612150