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6442271080 = 235723286873
BaseRepresentation
bin1011111111111110…
…10100000101101000
3121121222021021112121
411333333110011220
5101143210133310
62543132121024
7315434254300
oct57777240550
917558237477
106442271080
112806548683
1212b9606174
137b88ba82b
14451858600
1527a89b0da
hex17ffd4168

6442271080 has 48 divisors (see below), whose sum is σ = 16861663620. Its totient is φ = 2208777984.

The previous prime is 6442271041. The next prime is 6442271189. The reversal of 6442271080 is 801722446.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5717476996 + 724794084 = 75614^2 + 26922^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1641477 + ... + 1645396.

Almost surely, 26442271080 is an apocalyptic number.

It is an amenable number.

6442271080 is an abundant number, since it is smaller than the sum of its proper divisors (10419392540).

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

6442271080 is a wasteful number, since it uses less digits than its factorization.

6442271080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286898 (or 3286887 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 6442271080 is about 80263.7594434749. The cubic root of 6442271080 is about 1860.7141705799.

The spelling of 6442271080 in words is "six billion, four hundred forty-two million, two hundred seventy-one thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 392 490 980 1960 3286873 6573746 13147492 16434365 23008111 26294984 32868730 46016222 65737460 92032444 115040555 131474920 161056777 184064888 230081110 322113554 460162220 644227108 805283885 920324440 1288454216 1610567770 3221135540 6442271080