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97028756 = 22112205199
BaseRepresentation
bin1011100100010…
…00101010010100
320202120120102122
411302020222110
5144314410011
613343355112
72255505446
oct562105224
9222516378
1097028756
114a852160
12285b2a98
1317143286
14cc5a496
1587b93db
hex5c88a94

97028756 has 12 divisors (see below), whose sum is σ = 185236800. Its totient is φ = 44103960.

The previous prime is 97028731. The next prime is 97028759. The reversal of 97028756 is 65782079.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 2205199 = 97028756 / (9 + 7 + 0 + 2 + 8 + 7 + 5 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97028759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102556 + ... + 1102643.

It is an arithmetic number, because the mean of its divisors is an integer number (15436400).

Almost surely, 297028756 is an apocalyptic number.

It is an amenable number.

97028756 is a deficient number, since it is larger than the sum of its proper divisors (88208044).

97028756 is a wasteful number, since it uses less digits than its factorization.

97028756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205214 (or 2205212 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 97028756 is about 9850.3175583328. The cubic root of 97028756 is about 459.5154885900.

The spelling of 97028756 in words is "ninety-seven million, twenty-eight thousand, seven hundred fifty-six".

Divisors: 1 2 4 11 22 44 2205199 4410398 8820796 24257189 48514378 97028756