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83419457 = 1122923773
BaseRepresentation
bin1001111100011…
…10000101000001
312210222010222112
410332032011001
5132323410312
612135545105
72032024262
oct476160501
9183863875
1083419457
11430a7300
1223b2b195
1314389934
14b116969
1574cbd22
hex4f8e141

83419457 has 12 divisors (see below), whose sum is σ = 94858260. Its totient is φ = 73217760.

The previous prime is 83419439. The next prime is 83419463. The reversal of 83419457 is 75491438.

It can be written as a sum of positive squares in 2 ways, for example, as 31348801 + 52070656 = 5599^2 + 7216^2 .

It is not a de Polignac number, because 83419457 - 26 = 83419393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83419417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8378 + ... + 15395.

It is an arithmetic number, because the mean of its divisors is an integer number (7904855).

Almost surely, 283419457 is an apocalyptic number.

It is an amenable number.

83419457 is a deficient number, since it is larger than the sum of its proper divisors (11438803).

83419457 is a wasteful number, since it uses less digits than its factorization.

83419457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23824 (or 23813 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 83419457 is about 9133.4252610945. The cubic root of 83419457 is about 436.9406524666.

The spelling of 83419457 in words is "eighty-three million, four hundred nineteen thousand, four hundred fifty-seven".

Divisors: 1 11 29 121 319 3509 23773 261503 689417 2876533 7583587 83419457