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83057190 = 2352768573
BaseRepresentation
bin1001111001101…
…01101000100110
312210021202001020
410330311220212
5132230312230
612124112010
72025655146
oct474655046
9183252036
1083057190
114297a107
1223995606
1314290a88
14b060926
157459810
hex4f35a26

83057190 has 16 divisors (see below), whose sum is σ = 199337328. Its totient is φ = 22148576.

The previous prime is 83057179. The next prime is 83057197. The reversal of 83057190 is 9175038.

It is a super-2 number, since 2×830571902 = 13796993621392200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83057197) 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, 1384257 + ... + 1384316.

It is an arithmetic number, because the mean of its divisors is an integer number (12458583).

Almost surely, 283057190 is an apocalyptic number.

83057190 is an abundant number, since it is smaller than the sum of its proper divisors (116280138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83057190 is a wasteful number, since it uses less digits than its factorization.

83057190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768583.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 83057190 is about 9113.5717476739. The cubic root of 83057190 is about 436.3072316220.

The spelling of 83057190 in words is "eighty-three million, fifty-seven thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 2768573 5537146 8305719 13842865 16611438 27685730 41528595 83057190