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83129298 = 2371979269
BaseRepresentation
bin1001111010001…
…11001111010010
312210102101221220
410331013033102
5132240114143
612125425510
72026405320
oct475071722
9183371856
1083129298
1142a192aa
1223a0b296
13142b7845
14b07cd10
157470d83
hex4f473d2

83129298 has 16 divisors (see below), whose sum is σ = 190009920. Its totient is φ = 23751216.

The previous prime is 83129287. The next prime is 83129311. The reversal of 83129298 is 89292138.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1979269 = 83129298 / (8 + 3 + 1 + 2 + 9 + 2 + 9 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989593 + ... + 989676.

It is an arithmetic number, because the mean of its divisors is an integer number (11875620).

Almost surely, 283129298 is an apocalyptic number.

83129298 is an abundant number, since it is smaller than the sum of its proper divisors (106880622).

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

83129298 is a wasteful number, since it uses less digits than its factorization.

83129298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979281.

The product of its digits is 62208, while the sum is 42.

The square root of 83129298 is about 9117.5269673306. The cubic root of 83129298 is about 436.4334584690.

The spelling of 83129298 in words is "eighty-three million, one hundred twenty-nine thousand, two hundred ninety-eight".

Divisors: 1 2 3 6 7 14 21 42 1979269 3958538 5937807 11875614 13854883 27709766 41564649 83129298