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80144900 = 22521172859
BaseRepresentation
bin1001100011011…
…10101000000100
312120210210010122
410301232220010
5131004114100
611541441112
71662135413
oct461565004
9176723118
1080144900
1141270060
1222a10198
13137b1324
14a90347a
157081985
hex4c6ea04

80144900 has 36 divisors (see below), whose sum is σ = 189727440. Its totient is φ = 29143200.

The previous prime is 80144899. The next prime is 80144921. The reversal of 80144900 is 944108.

It is a self number, because there is not a number n which added to its sum of digits gives 80144900.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 35330 + ... + 37529.

Almost surely, 280144900 is an apocalyptic number.

It is an amenable number.

80144900 is an abundant number, since it is smaller than the sum of its proper divisors (109582540).

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

80144900 is a wasteful number, since it uses less digits than its factorization.

80144900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72884 (or 72877 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 80144900 is about 8952.3684017136. The cubic root of 80144900 is about 431.1469290887.

The spelling of 80144900 in words is "eighty million, one hundred forty-four thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 72859 145718 291436 364295 728590 801449 1457180 1602898 1821475 3205796 3642950 4007245 7285900 8014490 16028980 20036225 40072450 80144900