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83102437 = 112686797
BaseRepresentation
bin1001111010000…
…00101011100101
312210101001010001
410331000223211
5132233234222
612125101301
72026234105
oct475005345
9183331101
1083102437
1142a00100
12239b7831
13142a8552
14b073205
157467e27
hex4f40ae5

83102437 has 6 divisors (see below), whose sum is σ = 91344134. Its totient is φ = 75547560.

The previous prime is 83102423. The next prime is 83102489. The reversal of 83102437 is 73420138.

It can be written as a sum of positive squares in only one way, i.e., 51753636 + 31348801 = 7194^2 + 5599^2 .

It is a de Polignac number, because none of the positive numbers 2k-83102437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83102737) 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 5 ways as a sum of consecutive naturals, for example, 343278 + ... + 343519.

Almost surely, 283102437 is an apocalyptic number.

It is an amenable number.

83102437 is a deficient number, since it is larger than the sum of its proper divisors (8241697).

83102437 is a wasteful number, since it uses less digits than its factorization.

83102437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686819 (or 686808 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 83102437 is about 9116.0538063353. The cubic root of 83102437 is about 436.3864461548.

The spelling of 83102437 in words is "eighty-three million, one hundred two thousand, four hundred thirty-seven".

Divisors: 1 11 121 686797 7554767 83102437