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80570050 = 25211263557
BaseRepresentation
bin1001100110101…
…10011011000010
312121121101022221
410303112123002
5131111220200
611554521254
71665556051
oct463263302
9177541287
1080570050
1141530520
1222b9622a
13138cc9b2
14a9b4398
15711791a
hex4cd66c2

80570050 has 48 divisors (see below), whose sum is σ = 164400192. Its totient is φ = 29134400.

The previous prime is 80570041. The next prime is 80570057. The reversal of 80570050 is 5007508.

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

It is a junction number, because it is equal to n+sod(n) for n = 80569997 and 80570024.

It is not an unprimeable number, because it can be changed into a prime (80570057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144372 + ... + 144928.

It is an arithmetic number, because the mean of its divisors is an integer number (3425004).

Almost surely, 280570050 is an apocalyptic number.

80570050 is an abundant number, since it is smaller than the sum of its proper divisors (83830142).

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

80570050 is a wasteful number, since it uses less digits than its factorization.

80570050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 80570050 is about 8976.0821074676. The cubic root of 80570050 is about 431.9079629319.

Adding to 80570050 its reverse (5007508), we get a palindrome (85577558).

The spelling of 80570050 in words is "eighty million, five hundred seventy thousand, fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 263 275 526 550 557 1114 1315 2630 2785 2893 5570 5786 6127 6575 12254 13150 13925 14465 27850 28930 30635 61270 72325 144650 146491 153175 292982 306350 732455 1464910 1611401 3222802 3662275 7324550 8057005 16114010 40285025 80570050