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80270800 = 2452732749
BaseRepresentation
bin1001100100011…
…01010111010000
312121001011211121
410302031113100
5131022131200
611544252024
71663201441
oct462152720
9177034747
1080270800
1141346705
1222a71014
131382671c
14a9372c8
1570a8e1a
hex4c8d5d0

80270800 has 60 divisors (see below), whose sum is σ = 195563500. Its totient is φ = 31656960.

The previous prime is 80270777. The next prime is 80270831. The reversal of 80270800 is 807208.

It can be written as a sum of positive squares in 6 ways, for example, as 8156736 + 72114064 = 2856^2 + 8492^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27826 + ... + 30574.

Almost surely, 280270800 is an apocalyptic number.

80270800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80270800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97781750).

80270800 is an abundant number, since it is smaller than the sum of its proper divisors (115292700).

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

80270800 is a wasteful number, since it uses less digits than its factorization.

80270800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840 (or 2829 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 80270800 is about 8959.3973011582. The cubic root of 80270800 is about 431.3725745530.

The spelling of 80270800 in words is "eighty million, two hundred seventy thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 73 80 100 146 200 292 365 400 584 730 1168 1460 1825 2749 2920 3650 5498 5840 7300 10996 13745 14600 21992 27490 29200 43984 54980 68725 109960 137450 200677 219920 274900 401354 549800 802708 1003385 1099600 1605416 2006770 3210832 4013540 5016925 8027080 10033850 16054160 20067700 40135400 80270800