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80153172 = 223311195367
BaseRepresentation
bin1001100011100…
…00101001010100
312120211012111000
410301300221110
5131004400142
611541543300
71662201501
oct461605124
9176735430
1080153172
11412762a0
1222a14b30
13137b5018
14a9064a8
15708414c
hex4c70a54

80153172 has 192 divisors, whose sum is σ = 246758400. Its totient is φ = 22239360.

The previous prime is 80153141. The next prime is 80153179. The reversal of 80153172 is 27135108.

It is a super-3 number, since 3×801531723 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80153179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1196283 + ... + 1196349.

It is an arithmetic number, because the mean of its divisors is an integer number (1285200).

Almost surely, 280153172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80153172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123379200).

80153172 is an abundant number, since it is smaller than the sum of its proper divisors (166605228).

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

80153172 is a wasteful number, since it uses less digits than its factorization.

80153172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 80153172 is about 8952.8303904408. The cubic root of 80153172 is about 431.1617619090.

The spelling of 80153172 in words is "eighty million, one hundred fifty-three thousand, one hundred seventy-two".