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80129232 = 24321929287
BaseRepresentation
bin1001100011010…
…10110011010000
312120202222122100
410301222303100
5131003113412
611541240400
71662041631
oct461526320
9176688570
1080129232
114125a307
1222a03100
13137a7161
14a8db888
15707bedc
hex4c6acd0

80129232 has 60 divisors (see below), whose sum is σ = 236061280. Its totient is φ = 25303104.

The previous prime is 80129221. The next prime is 80129239. The reversal of 80129232 is 23292108.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80129196 and 80129205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80129239) 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, 11908 + ... + 17379.

Almost surely, 280129232 is an apocalyptic number.

It is an amenable number.

80129232 is an abundant number, since it is smaller than the sum of its proper divisors (155932048).

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

80129232 is a wasteful number, since it uses less digits than its factorization.

80129232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29320 (or 29311 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 80129232 is about 8951.4932832461. The cubic root of 80129232 is about 431.1188314375.

The spelling of 80129232 in words is "eighty million, one hundred twenty-nine thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 36 38 48 57 72 76 114 144 152 171 228 304 342 456 684 912 1368 2736 29287 58574 87861 117148 175722 234296 263583 351444 468592 527166 556453 702888 1054332 1112906 1405776 1669359 2108664 2225812 3338718 4217328 4451624 5008077 6677436 8903248 10016154 13354872 20032308 26709744 40064616 80129232