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82988903 = 194367837
BaseRepresentation
bin1001111001001…
…00111101100111
312210011021101002
410330210331213
5132221121103
612122423515
72025252104
oct474447547
9183137332
1082988903
1142932878
1223961b9b
131426897a
14b043aab
157444488
hex4f24f67

82988903 has 4 divisors (see below), whose sum is σ = 87356760. Its totient is φ = 78621048.

The previous prime is 82988897. The next prime is 82988909. The reversal of 82988903 is 30988928.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (82988897) and next prime (82988909).

It is a cyclic number.

It is not a de Polignac number, because 82988903 - 216 = 82923367 is a prime.

It is a super-2 number, since 2×829889032 = 13774316042286818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82988909) 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, 2183900 + ... + 2183937.

It is an arithmetic number, because the mean of its divisors is an integer number (21839190).

Almost surely, 282988903 is an apocalyptic number.

82988903 is a deficient number, since it is larger than the sum of its proper divisors (4367857).

82988903 is a wasteful number, since it uses less digits than its factorization.

82988903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4367856.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 82988903 is about 9109.8245317898. The cubic root of 82988903 is about 436.1876261593.

The spelling of 82988903 in words is "eighty-two million, nine hundred eighty-eight thousand, nine hundred three".

Divisors: 1 19 4367837 82988903