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83245921 = 1129260959
BaseRepresentation
bin1001111011000…
…11101101100001
312210122022221021
410331203231201
5132302332141
612132125441
72030402323
oct475435541
9183568837
1083245921
1142a98990
1223a66881
1314328955
14b0ad613
1574956d1
hex4f63b61

83245921 has 8 divisors (see below), whose sum is σ = 93945600. Its totient is φ = 73068240.

The previous prime is 83245913. The next prime is 83245927. The reversal of 83245921 is 12954238.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83245921 - 23 = 83245913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83245927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130161 + ... + 130798.

It is an arithmetic number, because the mean of its divisors is an integer number (11743200).

Almost surely, 283245921 is an apocalyptic number.

It is an amenable number.

83245921 is a deficient number, since it is larger than the sum of its proper divisors (10699679).

83245921 is a wasteful number, since it uses less digits than its factorization.

83245921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260999.

The product of its digits is 17280, while the sum is 34.

The square root of 83245921 is about 9123.9202648861. The cubic root of 83245921 is about 436.6374555238.

The spelling of 83245921 in words is "eighty-three million, two hundred forty-five thousand, nine hundred twenty-one".

Divisors: 1 11 29 319 260959 2870549 7567811 83245921