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26220080 = 245487673
BaseRepresentation
bin110010000000…
…1011000110000
31211100010012002
41210001120300
523203020310
62333553132
7435603245
oct144013060
954303162
1026220080
1113889597
1289457a8
135580653
1436a75cc
15247dda5
hex1901630

26220080 has 40 divisors (see below), whose sum is σ = 61177632. Its totient is φ = 10450944.

The previous prime is 26220037. The next prime is 26220083. The reversal of 26220080 is 8002262.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (26220083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38624 + ... + 39296.

Almost surely, 226220080 is an apocalyptic number.

26220080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26220080 is an abundant number, since it is smaller than the sum of its proper divisors (34957552).

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

26220080 is a wasteful number, since it uses less digits than its factorization.

26220080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 26220080 is about 5120.5546574566. The cubic root of 26220080 is about 297.0831390627.

The spelling of 26220080 in words is "twenty-six million, two hundred twenty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 487 673 974 1346 1948 2435 2692 3365 3896 4870 5384 6730 7792 9740 10768 13460 19480 26920 38960 53840 327751 655502 1311004 1638755 2622008 3277510 5244016 6555020 13110040 26220080