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83251869097 = 431936089979
BaseRepresentation
bin100110110001000110…
…0101011010110101001
321221212222002010210011
41031202030223112221
52330444434302342
6102125000251521
76005026132345
oct1154214532651
9257788063704
1083251869097
1132341567501
1214174a70ba1
137b09a64707
14405a9c6625
152273c15717
hex136232b5a9

83251869097 has 4 divisors (see below), whose sum is σ = 85187959120. Its totient is φ = 81315779076.

The previous prime is 83251869089. The next prime is 83251869119. The reversal of 83251869097 is 79096815238.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83251869097 - 23 = 83251869089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83251869037) 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, 968044947 + ... + 968045032.

It is an arithmetic number, because the mean of its divisors is an integer number (21296989780).

Almost surely, 283251869097 is an apocalyptic number.

It is an amenable number.

83251869097 is a deficient number, since it is larger than the sum of its proper divisors (1936090023).

83251869097 is a wasteful number, since it uses less digits than its factorization.

83251869097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936090022.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 83251869097 in words is "eighty-three billion, two hundred fifty-one million, eight hundred sixty-nine thousand, ninety-seven".

Divisors: 1 43 1936089979 83251869097