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83190764 = 22131158761
BaseRepresentation
bin1001111010101…
…10001111101100
312210112112021102
410331112033230
5132244101024
612131022232
72030052446
oct475261754
9183475242
1083190764
1142a604a8
1223a3a978
1314309807
14b097496
1574841ae
hex4f563ec

83190764 has 12 divisors (see below), whose sum is σ = 146696088. Its totient is φ = 41277600.

The previous prime is 83190743. The next prime is 83190769. The reversal of 83190764 is 46709138.

It is not an unprimeable number, because it can be changed into a prime (83190769) 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, 78857 + ... + 79904.

It is an arithmetic number, because the mean of its divisors is an integer number (12224674).

Almost surely, 283190764 is an apocalyptic number.

It is an amenable number.

83190764 is a deficient number, since it is larger than the sum of its proper divisors (63505324).

83190764 is a wasteful number, since it uses less digits than its factorization.

83190764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158896 (or 158894 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 83190764 is about 9120.8971050001. The cubic root of 83190764 is about 436.5409986128.

The spelling of 83190764 in words is "eighty-three million, one hundred ninety thousand, seven hundred sixty-four".

Divisors: 1 2 4 131 262 524 158761 317522 635044 20797691 41595382 83190764