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275055020 = 22519723829
BaseRepresentation
bin10000011001010…
…000000110101100
3201011120020112222
4100121100012230
51030403230040
643143214512
76546633452
oct2031200654
9634506488
10275055020
111312969a9
1278147438
1344ca5966
142875c9d2
1519232bb5
hex106501ac

275055020 has 24 divisors (see below), whose sum is σ = 608017200. Its totient is φ = 104231232.

The previous prime is 275055013. The next prime is 275055029. The reversal of 275055020 is 20550572.

It is not an unprimeable number, because it can be changed into a prime (275055029) 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, 361535 + ... + 362294.

It is an arithmetic number, because the mean of its divisors is an integer number (25334050).

Almost surely, 2275055020 is an apocalyptic number.

275055020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275055020 is an abundant number, since it is smaller than the sum of its proper divisors (332962180).

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

275055020 is a wasteful number, since it uses less digits than its factorization.

275055020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723857 (or 723855 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 275055020 is about 16584.7827842272. The cubic root of 275055020 is about 650.3390893467.

The spelling of 275055020 in words is "two hundred seventy-five million, fifty-five thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 723829 1447658 2895316 3619145 7238290 13752751 14476580 27505502 55011004 68763755 137527510 275055020