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80137398 = 23119291307
BaseRepresentation
bin1001100011011…
…00110010110110
312120210101211210
410301230302312
5131003344043
611541342250
71662104505
oct461546266
9176711753
1080137398
1141265460
1222a07986
13137aaaa3
14a90083c
15707e633
hex4c6ccb6

80137398 has 32 divisors (see below), whose sum is σ = 175167360. Its totient is φ = 24239360.

The previous prime is 80137373. The next prime is 80137403. The reversal of 80137398 is 89373108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60661 + ... + 61967.

It is an arithmetic number, because the mean of its divisors is an integer number (5473980).

Almost surely, 280137398 is an apocalyptic number.

80137398 is an abundant number, since it is smaller than the sum of its proper divisors (95029962).

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

80137398 is a wasteful number, since it uses less digits than its factorization.

80137398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 80137398 is about 8951.9493966398. The cubic root of 80137398 is about 431.1334761005.

The spelling of 80137398 in words is "eighty million, one hundred thirty-seven thousand, three hundred ninety-eight".

Divisors: 1 2 3 6 11 22 33 66 929 1307 1858 2614 2787 3921 5574 7842 10219 14377 20438 28754 30657 43131 61314 86262 1214203 2428406 3642609 7285218 13356233 26712466 40068699 80137398