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275051380 = 22547928711
BaseRepresentation
bin10000011001001…
…111001101110100
3201011120001120011
4100121033031310
51030403121010
643143150004
76546620032
oct2031171564
9634501504
10275051380
1113129419a
1278145304
1344ca40c6
142875b552
1519231a8a
hex1064f374

275051380 has 24 divisors (see below), whose sum is σ = 578833920. Its totient is φ = 109787040.

The previous prime is 275051369. The next prime is 275051407. The reversal of 275051380 is 83150572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4776 + ... + 23935.

It is an arithmetic number, because the mean of its divisors is an integer number (24118080).

Almost surely, 2275051380 is an apocalyptic number.

275051380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275051380 is an abundant number, since it is smaller than the sum of its proper divisors (303782540).

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

275051380 is a wasteful number, since it uses less digits than its factorization.

275051380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29199 (or 29197 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 275051380 is about 16584.6730447121. The cubic root of 275051380 is about 650.3362205331.

The spelling of 275051380 in words is "two hundred seventy-five million, fifty-one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 479 958 1916 2395 4790 9580 28711 57422 114844 143555 287110 574220 13752569 27505138 55010276 68762845 137525690 275051380