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82945429 = 7233116619
BaseRepresentation
bin1001111000110…
…10010110010101
312210002001201221
410330122112111
5132213223204
612121450341
72025011260
oct474322625
9183061657
1082945429
1142903146
12239409b1
1314251c48
14b031cd7
157436654
hex4f1a595

82945429 has 16 divisors (see below), whose sum is σ = 102113280. Its totient is φ = 65807280.

The previous prime is 82945427. The next prime is 82945483. The reversal of 82945429 is 92454928.

It is a happy number.

It is not a de Polignac number, because 82945429 - 21 = 82945427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82945427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3319 + ... + 13300.

It is an arithmetic number, because the mean of its divisors is an integer number (6382080).

Almost surely, 282945429 is an apocalyptic number.

It is an amenable number.

82945429 is a deficient number, since it is larger than the sum of its proper divisors (19167851).

82945429 is a wasteful number, since it uses less digits than its factorization.

82945429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16680.

The product of its digits is 207360, while the sum is 43.

The square root of 82945429 is about 9107.4381139813. The cubic root of 82945429 is about 436.1114467651. Note that the first 3 decimals are identical.

The spelling of 82945429 in words is "eighty-two million, nine hundred forty-five thousand, four hundred twenty-nine".

Divisors: 1 7 23 31 161 217 713 4991 16619 116333 382237 515189 2675659 3606323 11849347 82945429